Welcome to the Forum !
I presume you are using the BFD Player Version installed by the InMusic Software Center.
Current Version is 1.2.1…
What OS…
Windows?..Windows 11 ?
You click on the Core Library/Expansion Libraries…they will turn into a Drop Down Menu for Presets…
It appears you have one loaded.
As for the Window being cut off and losing the rest of the Features/Options…It looks like it’s not “snapping back”…
Windows programs won’t go outside the display area unless using multiple displays…however recently I have seen more and more users with this on Win 11…
See if any of these help