There is a setting that fixes this, I can't remember what it's called off the top of my head
CLAUDE_CODE_NO_FLICKER=1
This is a beta feature where Claude code draws the interface on the terminal’s alternate screen buffer like vim or htop. I believe it’s not the default because there are some potential compatibility issues deepening on your terminal setup. I’ve found it to be a nice improvement. It also fixed the issue where copy-pasting selected text from the terminal creates unwanted line breaks.
I've tried about 6 of those "settings" and hacks since November 2025 and not much luck.
This concept is so funny to me. Would love a toggle switch...
"Oh yeah, just go to Settings > Bugs Enabled and turn OFF text display errors"