Hi, so this was something I noticed back in the 2023 version of PP but that also seems to persist into the 2024 version.
Whenever I import a still image into a project (be it one created in PP using Export Frame or not), when I put the still image into the Source window, the colors are always inverted and the default lenght of the still image is locked to 12h (checked the settings and they should only be 5 seconds).
Now the colors are normal once down in the timeline and if I never put the imported still image into the Source window and just drag it from the Project window down into the timeline it will be the standard 5 seconds long. But if I at any point move it into the Source window the length becomes 12h even when trying to pull it straight from the Project window and I basically have to remove and re-import the file to make it return to normal.
All other files work fine in Source