Masking overlay dissapearing

Hi, I’d like to report a bug in Lightroom Classic related to the masking overlay. When using the brush tool within a mask, the red overlay initially shows as expected. However, after a short while of editing, the overlay suddenly disappears — even though the "Show Overlay" option is still enabled. Here are some additional observations:

Pressing "O" to toggle the overlay does not bring it back.

Duplicating the mask temporarily restores the overlay, but it disappears again shortly after

This happens inconsistently, but regularly.

Changing the overlay color and verifying all view modes makes no difference.