Hello,
When the in-game chatbox is shown (either by pressing / or by toggling it through the in-experience chat button at the top left), the channel tabs UI unexpectedly shifts or “flashes” rightwards for a brief moment before the effects disappear afterwards. This behavior occurs consistently every time the chatbox appears and only affects TextChatService.
Visual Aid:-
Steps to Reproduce:
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Join any Roblox experience that uses TextChatService and have ChannelTabs enabled.
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Press / or otherwise open the chatbox through the in-experience chat button at the top left.
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Observe how the tabs shifts or “flashes” to the rightwards after enabling the chatbox.
Thanks!