SUMMARY Normally in an email the black/white left border area is clickable for switching between plain or HTML message view (if both present in MIME content). This seems broken now. STEPS TO REPRODUCE 1. Load an email with both contents included 2. Click on the left border 3. Nothing happens :) OBSERVED RESULT Nothing happens EXPECTED RESULT Switching between the two display modes (HTML/plain) SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Kubuntu 22.10 with backports