Because of this issue https://adobe-video.uservoice.com/forums/916423-premiere-rush/suggestions/44958697-improve-media-storage-stability-in-rush-for-ios I edit with sync turned off on my iPhone. When I am back on wifi, I turn sync on.

I've noticed multiple times now that when I record voiceovers on Rush for iOS, duplicate the project to create an alternate version (eg one horizontal, one vertical), and then turn sync back on while on wifi, often times some or all of the voiceover files that were there and working fine on the iPhone prior to turning sync on will mysteriously vanish. Rush for iOS tells me it is fully synced, but on Rush for macOS it tells me it can't find the files. If I leave Rush for iOS and reopen it, it tells me that the files are not found and cannot play them back anymore.

In my usual process I do the following:

1. Create project in Rush for macOS with sync turned on.
2. Add files, let Rush for macOS create proxies and sync files.
3. Download project and files on Rush for iOS.
4. Turn project sync off on Rush for iOS.
5. Edit video, record voiceovers etc.
6. Turn sync on when editing is complete and on wifi.
7. Download changes and any new files eg voiceovers on Rush for macOS.
8. Export from Rush for macOS into relevant formats.

So somewhere in the "turn sync on" process, the files that were not already stored outside of Rush on macOS go missing. At first I wondered if it might be because I'd opened the project in macOS before iOS had completed uploading the files, but I've now experienced a couple of times where Rush for iOS simply won't upload the files and appears to be fully synced. I don't try to open it in Rush on macOS and instead close Rush for iOS, reopen it and find the voiceover files disconnected and cannot be found.

I've wasted A LOT of time with redoing voiceovers and associated editing repeatedly due to this issue.

I've noted what could be a related scenario with Premiere Rush voiceovers not appearing in Premiere Pro in the forums here: https://community.adobe.com/t5/premiere-rush-discussions/voiceover-recorded-in-rush-not-appearing-in-pro-timeline/m-p/12751096 However in this scenario they have fully synced from Rush on iOS. Nevertheless, it makes me wonder if there is some issue with how Rush for iOS handles voiceover files.

I have been getting a lot of proxy generation errors in Creative Cloud, especially for larger video files. The files are present on the timeline on my desktop, but the proxies are either not available in the "find and connect" option for mobile (iphone and ipad)., or they show up as octet files in the creative cloud folder on the web, but then do not show up as a loadable option in the app -- what even are octet files? This took me a very long time to track down and figure out, and what I ended up doing was manually creating proxy files from the full sized files using Media Encoder, and then uploading those files to Creative Cloud myself, and then making the link using "find and connect" on mobile. My manually created proxy files now function the same at the auto-generated proxies, which is great.

So this works, but it took hours of of figuring (no info online about what to do w for proxy errors or how to force Rush to re-generate proxies), and is very cumbersome & frustrating -- you typically don't know you have a broken proxy until you are in a mobile-use situation & you can't work from raw footage to fix the problem when you are not in the same location as your raw footage.

It would be great if Rush could identify when proxies are broken and regenerate them, or tell you that you have broken proxies and ask you if you want to, or to have an option to re-generate proxies from selected files from within the program. If this function exists, I can't find it. It seems like this exists in Pro -- maybe there's a simpler version to put in Rush.