Editing mixed rates onto timeline uses previous frame rather than marked in-point.

All clips progressive and show 'No Fields' in project panel with no interpretation.

23.976 Sequence:
23.976 clip: OK.
25 clip: Previous frame (SM: 00:00:04:15 > TL: 00:00:04:14)
29.97 clip: Previous frame (SM: 10:11:27:10 > TL: 10:11:27:09)

If I mark in-out on first frame of 25 clip, I cannot drag, nor edit clip to timeline. If I mark first & second frame: I can, but only first frame lands on timeline.

25 Sequence:
23.976 clip: Previous frame (SM: 00:00:03:00 > TL: 00:00:02:23)
25 clip: OK.
29.97 clip: OK.

Now it gets weird:

29.97 Sequence:
23.976 clip: OK.
25 clip: Insert & Overwrite edit OK. Drag from source monitor takes previous frame (SM: 00:00:04:15 > TL: 00:00:04:14)
29.97 clip: OK.

So there is some issue with dragging/dropping from source monitor (incl. audio/video drag icons below) since a different result is achieved between the two. Additionally, the fact I cannot edit the first frame of a 25 clip onto a 23.976 timeline is funky.

TLDR:
Speed ramps cause massive playback issues on non-rendered clips for interpreted footage.

the problem is with interpreted footage + cuda playback

(on windows, cuda playback on)

4k H.264 OR quicktime cineform footage 29.97, interpreted to 25. 
On a 1080 timeline.

Add a speed ramp to footage (any amount shows the bug but the higher it is the more obvious it is)  playback is borked. At the start of the ramp the footage jumps around in time.

This does not happen on non-interpreted footage, it does not happen when you use a 29.97 clip on a 25 fps timeline.

Absolutely awful workaround: create new sequence from clip, set their speed to 83.41675008341675‬%,

Absolutely awful workaround 2: render and replace interpreted footage in new sequences.

Absolutely awful workaround 3: switch off cuda playback.

The universal convention for selecting items works as follows (in MS Windows’ Explorer and all convention-respecting software, including most Adobe programs):

Ctrl-select = selects or deselects individual items, one by one.
Shift-select = selects the range of items between a selected item and the Shift-selected one
Ctrl-A = selects all items

Unfortunately, Premiere Pro has major consistency issues when it comes to how items are selected. This results in user frustration/confusion and a much less than ideal workflow. Here are the issues and proposed solutions (see chart):

PROJECT WINDOW: Shift & Ctrl-selecting/deselecting works as expected in all views: Icon, List and Freeform. With a current selection of clips, Ctrl-selecting another clip and then Shift-Ctrl-selecting yet another clips allows a second range of clips to be selected. This works in Icon and List view but not in Freeform view. SOLUTION: allow Shift-Ctrl-selecting additional ranges of clips to work in Freeform view as well.

TIMELINE: Ctrl-selecting does not work. Shift-selecting clips works the way Ctrl-selecting does: it selects clips 1 by 1. This is unexpected and unhelpful. SOLUTION: Enable Ctrl-selection/deselection of individual clips. Allow Shift-select to select all clips within a range. If the first selected clip is on V1 and the user Shift-selects another clip on V1, then all clips in between on V1 should be selected. If the user Shift-selects a second clip on V3, then all clips in between on V1, V2 and V3 should be selected, and so forth.

ESSENTIAL GRAPHICS and LEGACY TITLER: Ctrl-select doesn’t work while Shift-select performs the function of Ctrl-select: titles are selected 1 by 1. SOLUTION: Respect selection conventions… Ctrl-select selects titles 1 by 1, Shift-select selects all titles between the first and last selected title. NOTE: oddly, selecting titles directly in the Essential Graphics panel DOES follow selection convention: Ctrl and Shift-selecting works as expected (with the exception that a user cannot Ctrl-deselect an individual title. Trying to do so deselects all selected titles). This means that not only are there selection inconsistencies between tools in Premiere, but there’s even inconsistencies within some tools themselves!

EFFECT CONTROLS: Ctrl-select selects individual effects, but Shift-select doesn’t work. With regards to keyframes, both Shift and Ctrl-select selects keyframes individually. With regards to Text layers (under Vector Motion) everything works as expected. SOLUTION: Allow Shift-select to select a range of effects/keyframes as expected by software convention.

EFFECTS: Ctrl-select works as expected. Shift-select does not work. SOLUTION: Enable Shift-select to select a range of effects. Why would a user ever want to do this? To easily select a group of effects to drag into a custom bin for organizational purposes.

CAPTIONS: Shift and Ctrl select work as expected, but this is the only place in Premiere where Ctrl-A does not work for selecting all items at once. SOLUTION: Fix this strange and frustrating omission so that users can more easily select all of their captions at once to make global styling changes.

Fixing 'boring' issues like this could have a bigger overall positive impact on editors than introducing flashy new features. Please fix what's already there before dedicating limited resources to new tools most people will never use! As always, thanks for listening!

File/Export/H.264

Selecting Level 5.2, (needed for 2160p60), in Encoding Settings means that Hardware Encoding changes to Software Encoding. Reselecting Hardware Encoding results in a message saying that "Your system doesn't support hardware acceleration". However this doesn't happen in any other level, including 6.0 and above.

What I've also noticed is that in all other Levels, under "Bitrate encoding: VBR, 1 pass" you only have a Target Bitrate, but with 5.2 selected you also have a Maximum Bitrate option, which is what you'd normally only get with "VBR, 2 pass". So it looks like with Level 5.2 selected Premiere gives you the options of a 2 pass encode, even if you've selected 1 pass, (software only & Maximum bitrate).

This bug seen in 14.3.1, 14.2, and possibly earlier versions.

Here's the bug description (I copied a post by alekseyg79178945 in the Adobe Support Community - he explains it very well):

"The current situation is as follows: I have a Premier project in which there are several dynamic links to 3 different AE projects. The first type of links to 3D animation, the second type of links to text animation, and the third type of links to 3D animation in AE. Until the April update, everything worked fine.
After the April update in Premiere, the project links are loaded from only one AE file. The rest of the AE files do not load, even if I forcibly used Link Media.
After several attempts to figure out the situation and find out what the problem is, I realized the following:
If Premiere Project have Dynamic Links to more than one AE project, it will only load the link to the project that is curently loaded in AE, and will completely lose touch with other projects."

Trying to relink the offline AE projects you will only get an "unknown error occured".

I'm having the exact same problem. Dynamic link basically is unusable this way. Please, please, please take a look at this bug!!

The Render & Replace feature in Premiere Pro is great, especially for complex MOGRTs that will not play smoothly. It's much better than rendering the sequence, since we can still move the clip around without re-rendering. It's fantastic!

But the only option for MOGRTs that are not full screen (and most are not) and need an Alpha channel is GoPro Cineform. That's a very good codec, but it has some limitations that makes it unsuitable for non-broadcast frame sizes: The frame width must be evenly divisible by 16 and the frame height by 8. Adobe knows this: https://helpx.adobe.com/premiere-pro/using/gopro-cineform-codec.html#TipstoworkwiththeGoProCineFormcodecbr

This means that Render & Replace will fail in a 1080x1080 or 1080x1920 sequence for social media.
1080/16 = 67,5 – which is not an integer. The same is true for sequences that are 1350x1080. 1350/16 = 84,375 – which is not an integer.

These sizes are widely used in videos for Social Media! And we can't use Render & Replace (with alpha) when editing videos for them.
We can't have this nonsense anymore!

We need ProRes 4444 with alpha in addition to Cineform with alpha for Render & Replace. ProRes is much more flexible. Oh – and we need to be able to choose the default format. Or at least it should be sticky, so we don't have to change it every time.

PR Pro 2020 suddenly stopped working (as of January 15 2020).
It shows the splash screen and goes through some loading stuff (very, very, very slowly).
Finally an error message pops up saying „Premiere Pro could not find any capable video play modules…..“ and crashes.

I already tried resetting caches and preferences, reset the NVRAM and PRAM, removed every single plugin I had, uninstalled and reinstalled PR but to no avail.

I have PR Pro 2019 installed alongside and it is working just fine (lucky for me I could downgrade some of my PR projects so I could continue working and hold the deadlines).

I already sent out the crash report a few times but didn't hear back from Adobe.

Machine Specs:
OS Version: Mac OS X 10.14.6
RAM: 65536MB
Machine: x86_64
Model: MacPro6,1
CPU * Core count: 12
CPU Frequency: 3500MHz
Bus Frequency: 100MHz
Open GL Renderer: AMD Radeon HD - FirePro D500 OpenGL Engine

Community topic here:
https://community.adobe.com/t5/premiere-pro/premiere-pro-could-not-find-any-capable-video-play-modules-please-update-your-video-display-drivers/m-p/10862082#M247598

This issue is hard to explain, so please bear with me. I'm running the lastest Premiere Pro CC on Windows and when my media gets disconnected and I right click that media in project window, my whole Premiere freezes (like it's waiting on some action). It took me a while to figure out, but if I press Esc everyting gets back to normal.

It feels like Link Media window "opens" in the system, but I do not see it anywhere. Same issue with Attaching Proxies, I can't see that window pop up. After some research, nobody seems to have this problem. I've already restarted Premiere, my computer, and even reinstalled Premiere, but nothing helped.

Only solution right now I have going about relinking my media is by Replacing Footage, which sucks because I can only "replace" 1 media a time.
My computer specs: Windows 10 Pro, OS Build 18363.959, Intel Xeon Gold 6234 @ 3.30GHz, 32gb RAM.
Running Premiere Pro v14.3.1 (Build 45).
Please help!