'Failed to create communication with overlay (...)'

[Vista]

https://gyazo.com/980ee8edbf635d1424c3396898b3bb53

I was updating some stuff in my computer and suddenly I start getting that error and my mumble overlay stop popping up in my games.

Running W10, any ideas?

[kissaki]

From the error message, it seems to be a permission/accessibility issue to the named pipe used for communicating between overlay and Mumble.

Did you run Mumble or a hardware accelerated program from a different user? As admin? Are any of those still running?

I would expect a system restart to fix the issue.

If not, did you install additional "permission" or "security" software, or changed permission configuration in one way or another?