OSC 52 escape sequences don't copy to clipboard when base64-encoded data exceeds ~1024 bytes. Test with printf '\033]52;c;%s\007' "$(head -c 2000 /dev/urandom | base64)" - it fails to copy, while the same command works in Terminus/iTerm2/Kitty. Please increase buffer size to support standard OSC 52 data limits (100KB+).