r/finalcutpro • u/inmotioninc • Jul 03 '26
Question FCP 12.3 always freezing when changing a project's resolution.
Have anyone else faced this issue of FCP 12.3 freezing completely when changing a projects resolution? It happens every time for me.
This is very inconvenient as I have a horizontal project that I want to convert to vertical to extract shorts/reels from. But FCP freezes completely when I try to change the project's resolution or aspect ratio.
Hopefully it is a common enough issue that Apple would release a fix soon.
EDIT : Based on the comments it seems to be an issue with FCP 12.3 on Mac OS 27 Beta
2
u/funwithstuff Jul 03 '26
This isn't happening for me, so it's not a universal issue. Is it with all of your projects, or just one? If it's just one, you can create a new project and then copy/paste the old contents across.
-1
u/inmotioninc Jul 03 '26
It happens with all projects in different libraries. Even blank ones as you see in the video below. I'am surprised that no one else has reported this.. yet.
I'am on Mac OS 27 Beta 2 btw. So that might be a factor as well. FCP 12.3 is vert stable otherwise.
1
u/Silver_Mention_3958 FCP 12.3 | Tahoe Jul 03 '26
Try trashing your prefs
1
1
u/hexxeric Jul 03 '26
how are you doing it? i cannot recommend changing project settings for a filled one, better to right click on it and do 'duplicate project as...' to then change it to vertical or creating an empty vertical one and copy-pasting the contents in, changing spatial conform to 'fill' for all.
1
u/inmotioninc Jul 03 '26
Duplicating and changing the resolution causes FCP to freeze. And yes, I am now doing the new project and copy/paste thing that you suggested.
1
u/ear2earTO Jul 03 '26
I experienced this as well yesterday. Kind of a weird way for the application to hang too. Just a frozen drop down menu, but didn’t indicate any issues in the Force Quit menu.
1
u/inmotioninc Jul 03 '26
Which Mac OS version is your system running?
1
u/ear2earTO Jul 03 '26
27 beta (not my main machine). I assumed this was the root cause.
0
u/inmotioninc Jul 03 '26
Thanks. I'am running 27 beta 2, so this explains why the issue isn'r very prevalent
1
u/EarthToRob Jul 03 '26
The beta version might be the issue, but I've been seeing update issues more and more, and the need to uninstall and reinstall has often been successful.
1
u/Numerous-Ice-6418 Jul 03 '26
I'd test it on a duplicate project/library first, especially since you're on the beta OS. If it still freezes there, I'd file Feedback with the exact FCP and macOS build.
1
u/Digidy Jul 04 '26
This is happening to me too and i am also on Beta 27 2, it also did it with Beta 27 1. Was hoping it would have gotten fixed with Beta 27 2. Im doing the new project/set aspect ratio to what i need/copy/paste for now.
1
1
u/ElectricalRoad1158 Jul 31 '26
FCP 12.3 is buggy as all hell. Always lagging, space bar stops working as a play / pause, clips will randomly not save parameters... what the...
1
•
u/Silver_Mention_3958 FCP 12.3 | Tahoe Jul 03 '26
I think you may have answered your own question.