There is a crazy bug: when the dynamic spellcheck is active (German, Duden) and you are typing in a text frame hintereinanderherschlichen (it’s a German word) indesign crashed immediately.

We don’t know why, but then, after the crash, and when the dynamic spell check is still active, InDesign crashes again when it tries to recover the document.

Systems: Apple OS Montery, InDesign 2022 German