I see some pattern to reproduce (?this?) issue* - it only happens once per Inv session - after FIRST close of all documents.
Actions that does not solve the issue on my configuration:
Minimize+Maximize of Inv window;
Reset utility.
Actions that does solve the issue:
Minimize+Maximize the Home window itself (apart from the rest home window content those controls in the top right corner stay visible);
Clicking Home button;
Opening another document;
Just in case, my configuration has integrated video-card (Iris XE):

*
In my case home is filled with white (not black) even so I have dark theme active.
PS:
I can reproduce the issue (stable) in Inventor 2024.3.4 and 2025.2.1. but I can't reproduce it on 2022.6.1 (same PC).