When you use a textbox with the TextScaled property set to true on mobile the text does not scale and instead prioritizes using the TextSize property while the keyboard is on screen. As soon as the keyboard goes away the text once again respects the TextScaled property.
In the below videos the textbox is configured as such:
TextScaled = true
TextSize = 14
Android Phone:
Android Tablet:
I also can confirm this same issue occurs on IOS devices as well.
I tried this with a few different textbox sizes not shown in the videos above, but as far as I can tell this has no impact on the bug. The text always prioritizes to the TextSize property when the mobile keyboard is on screen.
In comparison this does not happen on PC:
This is the placefile I used to record the above videos. Keep in mind you’ll have to actually upload this and test with real hardware. The emulator is unable to reproduce this bug.
Textbox mobile bug.rbxl (40.6 KB)
Expected behavior
I would expect the behavior of the TextScaled on mobile to mirror PC when the player is typing into a textbox.