Source monitor in a FullHD sequence crops 4K videos
Don't know if it's a bug, or something not thought through, it accompanies Premiere Pro for ages and no one seems to care about it... I think it's time to.
If you open a 4K footage in the Source monitor while in a 1920x1080 sequence, the source mon shows the video cropped.
Steps to recreate:
1) Create a FHD sequence:

2) Import a 4k footage
3) Drag it onto the timeline keeping the existing settings
4) Doulbe-click on it on the timeline and see this:

And here's what it should look like or does so when opened from the project bin:

So the source monitor should show the videos the same way in all cases. I think this should be fixed.
Premiere Pro 25 (or any), footage properties below (or - again - any 4K), 14700K, 4080, latest Studio drvs, Win11
Don't know if it's important - Fit to screen is set as default scaling in the preferences.
Type: MPEG Movie
File Size: 55,94 MB
Image Size: 3840 x 2160
Frame Rate: 25,00
Total Duration: 00:00:31:16
Pixel Aspect Ratio: 1,0
Alpha: None
Color Space: Rec. 709
Color Space Override: Off
Input LUT: None
Video Codec Type: MP4/MOV H.264 4:2:0
