I noticed this bug has been present in the mobile Android client a couple of months ago, but is also present on builds 1609 and 1610. (I was locked out of Canny at the time, and I just remembered this bug; please forgive me).

On other clients of VRChat, you can easily double-click the Quick Menu tabs to activate a function, such as opening the camera, or toggling Earmuff mode. There's a lot of leeway between the second click where it will register the second click.

However, on the mobile Android client of VRChat, you have to be extremely quick to double-click the tabs. It does not work a lot of the time, so spamming the button extremely fast will eventually enable the double-click. The client believes I am inputting several single clicks.

I thought I was going to damage my phone screen from trying to get it to work.