Let's take it one step at the time. I can't confirm any change between v33.1 and v35 as reported here. IS there a change?
Yes. They behave differently.
Here's a project:
https://jefftucker.jalbum.net/vidDimsBug.zip
Unzip it, and make a couple of copies, like
vdb33 and
vdb35, so you don't get wrapped around the axle.
Open
vdb35 in
jAlbum 35.0.2, and before you do anything else, take a look at what's there. The video is marked
Do not re-encode. The original 20MB video is sitting in the image directory. The processed 6MB video is sitting in the output.
Make album, and now look at the output video size - it's 20MB.
Now open
vdb33 in
jAlbum 33.3.1, and do the same thing. The 6MB output video remains untouched.
That's the way it always used to work.
ETA:
jAlbum 34.3 behaves the same way as
jAlbum 33.3.1. The change didn't show up until
jAlbum 35.