RAM Preview Broken
In the latest update, RAM preview is broken. It will cache frames but never finish or get stuck locking existing frame. even when cached, playback is not working. I have to scrub everything right now. I've reset the RAM preview pane state but same results.

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Andreas Christensen commented
Same problem here. No preview for me i guess. Gotta eyeball everything appearantly.
plz. fix. -
Manunymous commented
Same problem here, I believe too is related to waking up from energy saving.
Radeon RX 5700, Ryzen 9 3900x -
the dudes commented
I just noticed that space would stick on toggling the hand tool, instead of hitting playback. #classicadobe
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the dudes commented
After waking up from energy saving mode, spacebar doesn't work anymore. (Latest AE as of now.)
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Andreas Urra commented
Same problem here.
AE 2020 (17.1.0)
NVIDIA RTX2080 Ti, Driver Version 445.87
Memory 128 GB
Windows 10 Pro 64-bit (10.0, Build 18362) (18362.19h1_release.190318-1202)
Intel(R) Xeon(R) CPU E5-1650 v4 @ 3.60GHz (12 CPUs), ~3.6GHz -
mrRG commented
Same problem here after upgrade to AE 2020. All I can do is scrub through the timeline. Preview doesn't work - still frame is all I see.
MacOS 10.13.6
Model Name: Mac mini
Model Identifier: Macmini6,2
Processor Name: Intel Core i7
Processor Speed: 2,3 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB
Intel HD Graphics 4000 1536 MB