'Paste and match style' broken

This is something I rely on day to day, but after the last update, it just doesn’t work. It pastes in a random style, not plain text, not the existing style, but something completely different, and often ugly.

Considering going back to the previous version…

Have you tried doing a full uninstall and reinstall? I have never heard of any bugs that cause text to be formatted by random values when pasting text. How random are we talking about by the way? Does every single aspect have a variable value, like a first-line indent on one line of 0.87in, and a right-indent of 43in on the next, red text blue text, etc? What all is randomising that you can tell?