Have several projects that are completely rendered before sharing them. When I quit FCP X and open it the next time the project start rendering again.
What is causing this? I don't want to render everything from scratch every time.
Using MacBook Pro Retina (late 2013), 2,8GHz i7, 16 GB RAM.
MacBook Pro 13", macOS 10.14
You can try a rest of the FCP X preferences.
Hold Option-Command as you launch FCP X.
Rendering should stick.
Do you know where the render files are directed?
Al
Can you create a Library on an External Drive formatted to APFS (ssd) or Mac OS Extended (spinning).
Then using Library Properties make sure everything goes onto that drive.
The idea is to test if having a completely Managed Library make renders stick.
Al
App cleaning apps can delete stuff that is vital to your system, wouldn't be the first time a bad "CLEAN" has occurred.
I would suggest a Clean Install of the OS onto an external drive and boot from that.
Download a fresh copy of FCP X onto the external as well.
Try another test Library on the newly installed OS and FCP X on the external.
This will leave your existing system drive in tact.
Al
Switch off backgrounds rendering in preferences and export without rendering.
Now I did the thing all over to be extra thorough. I deleted FCP using App Cleaner so every little file was deleted, then I restarted and did a PRAM reset. The installed FCP again and opened the test library, let it render into the library and exited FCP.
As before the re-rendering started when I opened FCP again, BUT ONE THING was different. One single clip didn't need re-rendering.
This makes me believe it's not a bug within FCP that can happen to anyone, it's something that was introduced with one of the OS X Mojave updates during the last couple of months that makes FCP behave like this with my computer (MacBook Pro late 2013) and my hardware/software configuration - or anyone else who has a similar setup.
This problem started when I was on FCP 10.4.4 so it's nothing new in 10.4.7, it also worked as it was supposed to in 10.4.4 so that is why my guess is that the only thing that has changed is Mojave.
The above didn't solve the problem, but I wish Apple would investigate further. I did submit an report on their "product feedback" page but I think it's a long shot. At least the fact that FCP chose to not render a single clip would imply it's behaving somewhat erratic.
Yeah, I know it's a long shot, but did you check out
https://support.apple.com/en-us/HT203477
? Just in case you missed one of the items there.
Or perhaps you found the problem already? If so, please do tell. Thanks! (^_^)
valmont74 wrote:
Am I the only one plagued by this, can't be, right?
I recall some older versions of FCP X that had similar issues, rare issues.
Normally the reset trick sorts out weird behaviour, you have already tried that.
I'm not sure where to go from here, maybe delete FCP X and re-download a fresh copy.
If you have third party apps or plugins connected to FCP X there is always a chance that one of them could be the culprit.
A process of systematic elimination may reveal the bad guy.
Al
I tried to reset the preferences the way you described, but it still start re-rendering. I opened one small project, deleted all render files, told FCP to "render all" and exited when done. When I started again the rendering started from scratch again. It didn't stick. The file size of the render packade also grows 100%, so it's not just rendering parts of the projects, it makes it all over again and adding it to the already existing packade and doubles the size.
I put my render files on an external drive since they take up so much space. I also make a new library for every project to keep them smaller than if I put all the projects into same library. Also makes easier to back up certain films.
Not sure what to do, I can't be stuck with re-rendering my projects every time I open an already renderad project or because I exit FCP. All suggestions are welcome.
It's got me beat. 😵
The only thing I could suggest is to turn off render in the FCP X preferences.
Switch back on as required.
If you figure out an answer please let the forum know.
Al
Yes, that is one workaround while I'm in the first stages of editing my project.
However, why I want to do background rendering is so that all effects and transitions are finished for export so I can view the results on my big screen when the project is in its final stages. At that time I do many changes and it's really annoying to have to sit through a complete re-render every time I open FCP X. There has to be a solution for this, or is it just me who this occurs to?
I created a new library with a project, media and all on my external Samsung T5 SSD (APFS) and chose to include the rendering files in the library so they're all in the same container.
At first attempt to close FCP and open again the project started re-rendering to the double size as mentioned before. I then chose to delete "all unused render files" and the size of the rendered files where taken down 50%, I assume they latest render was kept and the previous was deleted.
When opening the second time the project started re-rendering again.
I then did the same thing but on the native Machintosh HD (also APFS) and did the same two steps as above. Unfortunately with the same re-rendering results.
It seems FCP doesn't take any notice if the rendering files are in the same library or on a separate SSD, the project start re-rendering every time the program starts up.
Am I the only one plagued by this, can't be, right?
I have now tried to re-install FCP and did the testing mentioned above with the libraries but still the re-rendering start whenever I open FCP. I also tried the reset trick, still no change.
No third party apps or plug ins, I have some custom LUTs downloaded, but that's the only thing i've added. On the project for the test above I have no LUTs applied so it shouldn't be a problem either.
I have a similar problem, but it's only one or just a few clips that get re-rendered when opening a project, so it's not as bad as the OP's situation. Also, it seems like sometimes playback stutters or gets sluggish (audio not interrupted, thankfully), and I have to restart the playback. And there's a particular group of short clips that sometimes makes playback really sluggish or even stops it dead. It doesn't happen much anymore. I might export them and re-import them one day.
So I, too, am really curious what's happening in the OP's situation.
BTW, I'm running FCP 10.4.6 on macOS 10.13.6 with Neat Video versions 4.8.5 and 5.1.2.
Thank you all for the good advice!
I have noticed that the re-render seems to occur when I'm using a 60fps clip and when I put on a LUT it's certain to re-render. I started a 24fps clip with some transitions and transformations to fix the horizon and the render seems to stick. I will be doing more experiments with and without LUTs and maybe even 30fps. Not sure if it makes any sense, but perhaps a LUT will trigger this. Or 60fps. Sometimes.
I am currently looking on upgrading to an MacBook Pro 16", then I will get to see it on a completely fresh environment, but I need to save some good money first :)
FCP X re-render projects that have already been rendered
