When you choose chat, select settings, and tap on chat colors you can't scroll up and down.
Steps to Reproduce:
Open the chat
Tap on the button with the gear icon
Scroll down and tap on "Chat Color" or "My Mentions Color"
Try to scroll up or down
Observed Results:
You cannot scroll up or down.
Expected Results:
You should be able to scroll up and down.
I am on iPad Pro 12.9” Gen 1 with iPadOS 13.4 running Minecraft 1.14.30.
I recently discovered this bug as well. Seems like a simple GUI oversight for mobile.