Firstly, several project that I've worked on got messed up when opened with this new version.
It looked exactly the same in the timeline, effects controls and audio track mixer, but....
The sound was shifted out of sync, audio effects even though applied and seemingly working (sounded ok in preview) broke the audio completely in the exported file, random loud clipping, audio repeating itself near the points where audio clips cuts were in the timeline.... its completely unacceptable.
Even worse, visual effects (nothing fancy), just animated offsets and basic 3d + some timeramps here and there are absolutely out of position in the export and does not match the project file...
How on earth is it ok to push an update that's so horrendously broken with obviously 0 quality control.
I mean, how on earth are we supposed to work and get an end product looking like we need it to without having a tool to preview it? Am I missing a skill where I should magically see how things look and sound without actually seeing and hearing them ?
What's with the carp Adobe?
Effects and Titles
Error or problem
User interface or workspaces
I have to admit I am stunned that anyone would change to a major updated version mid-project though - this is placing far too much trust in the updated version, and I make it a rule of thumb to never, ever update any software tool such as an NLE or a DAW midway through a project. Fortunately, with Premiere it should have suffixed the original project name with a _1 after it's original name, so the original project files are still extant & available to use.
Please, please finish your work before updating. You know it makes sense.....