Transitions render in preview but aren't in export

[Margo Luey]

I have one of the weirdest glitches I've seen. I've been using Premiere for years and have always found an answer somewhere, but this may be a new one. 

I have a commercial for a client that I'm working on. It's fast paced and transitions are used everywhere. We use custom made transitions on adjustment layers for this client, and have been doing so for about a year. 

I'm running into a weird thing where the transition is populating on the program monitor and rendering in Premiere, but isn't showing up in the final export. It just cuts from one clip to the next. 

But, of the 6 transitions in the timeline, only 2 are not working. The other 4 are fine. 

I've updated Premiere, uninstalled and reinstalled, copied the sequence, changed sequence settings, changed export settings, duplicated the sequence, copied the files manually from one sequence to the next, turned my computer on and off again, and of course, checked to make sure the layers are not hidden. 

Any ideas? Or is this just a glitch? 

[Ann Bens]

Are these real transitions or transition effects?

[Margo Luey]

They're keyframed transitions on adjustment layers, but do not use any of Premiere's preset transition effects. 

For instance, I have Offset, Lens Distortion, and Fast Blur on one of the adjustment layers that is not exporting. 

[Ann Bens · Accepted solution]

So they are transition effects.

Delete from timeline and re apply.

If not working, export just the section of the timeline to intermediate codec and put that on the timeline. Then do the final export.

See how that goes.

[Michael Grenadier]

Have you tried smart rendering?

https://community.adobe.com/t5/premiere-pro-discussions/faq-what-is-smart-rendering/td-p/10648488

to summarize, in your sequence settings, set your preview format to a high quality codec (best to match your output format), render your entire timeline and then when you export make sure "use previews" is enabled.

[garyw76170312]

I've had this happen to me before and it was because I had Optical Flow selected as the blending mode.  I changed that to Frame Sampling or Frame Blending and now my transitions show up where they are supposed to.

[Michael Grenadier]

but you lose the optical flow. Shouldn't be necessary.  What are the properties of your clips and sequence?  

[Richard van den Boogaard]

Sometimes, stacking multiple effects (optical flow and XYZ) can cause problems.

A solution that often works is using nesting and applying one effect per nest.

Hope this helps.

[Peru Bob]

Try nesting.

[Peru Bob]

Try turning off Hardware encoding in the Video tab of the export settings.

[Michael Grenadier]

And you might try "render and replace" which has gotten me over these sort of humps..

[Howard30661113gol1]

Thanks, what I ended up doing was shortening my transitions...now it looks like it's stuck at 100% on the second pass.......

[Michael Grenadier]

Never easy to troubleshoot premiere problems from a distance so please tell us your system specs: OS version, Premiere version, amount of RAM, Hardware specs including graphics card and if you have any 3rd party plugins installed for Premiere... Also, sequence settings and clip properties can also help. Although you can throw almost any format into premiere, some formats can be problematic, particularly on an underpowered system.

[Howard30661113gol1]

I'm export to an external with 2tb. Lacie. If I refresh the folder, I see the file size increasing so it must still be working. Maybe just visual at this point...it's says 100%, but it's not really. 

[Howard30661113gol1]

I have 3 files....looks like a temporary...M4V, and now the MP4 is moving. 

[Howard30661113gol1]

The mp4 render is moving pretty fast. It's almost at 30k kb which is more than half way to the total for the other 2 files. Maybe it'll be done once it gets closer to that file size. Really appreciate the help!!

[Michael Grenadier]

I think what's going on is Premiere is exporting audio and video as seperate files and then combining them...    There's always a lag when it gets to 100% before it finishes...

[Howard30661113gol1]

Oh, so this is to be expected? After that mp4 file finished, it created another _00_file. May it exported effects, audio, and video separately?

[Howard30661113gol1]

It worked....Adobe need to figure out a way to make sure the countdown is accurate. 

[Putchfilms]

Same thing happening here.  I've tried exporting to different codecs but to no avail.  I've also deleted all the media cache files and tried rebooting and re launching.  This did not happen prior to the 2025 update.  Totally frustrating.  I guess i'll try pasting my project into a fresh timeline.  If that doesn't work, i'll probably have to remove and reapply every swish pan i have put in the video.  Of which there are many.  I'm so ready to switch to Davinci. This is horseshit.