Here, a test confirms that the current 64-bit release is asking to resolve missing files as always.
Look at the bottom-left corner of the window and report the version # there.
Do a test...
Start a new project with a few videos. Save it. Close Videopad.
Then rename one of the files that was used in the project.
Restart Videopad and load the project by double-clicking its VPJ file.
You should see the RESOLVE prompt for the renamed file.