I cannot speak for which devices this is occurring on, but most of the reports about this sort of behavior I’ve gotten are coming from users who are using IPads.
I’m not sure if this is a IPad-specific bug, because I do not have the tools to test it!
It’s simple, when the core chat GUI is disabled and then re-enabled, the chat never comes back.
You can test this in my Minigame Madness game ( Ripull Minigames - Roblox ).
When the voting screen pops up, it disables the core chat GUI, and re-enables it when voting is done.
For disabling and re-enabling the core chat GUI, it’s being disabled under the ‘All’ Enum, and re-enabled under the ‘All’ Enum also.