Custom button/key assignments for MX Master 3 and MX Keys Mini randomly stops working. I have Mission Control assigned to the thumb button on my MX Master 3 and to F6 on my MX Keys Mini. When this bug occurs neither opens up Mission Control, rendering them both useless until the bug suddenly and randomly stops (usually within a few minutes).

The bug does seem to happen less frequently when using Logi Options+, but when it does occur it can seriously disrupt the user's workflow.

Judging from the search results on Google, it seems many users are experiencing this.

Hoping this will be resolved soon and that it's a software rather than hardware issue.