Hey, @Exciting_neighborb56f!
Following up on this - our team was able to dig into the logs and identify what happened.
When the AI assistant tried to completely remove a text element (replacing it with nothing), it hit a current limitation - empty string replacements aren't supported yet.
Instead of asking it to delete or replace text with nothing, try asking it to replace the text with a single space, or just manually delete the text after the other edits are applied.
It's a known gap and something the team is working on improving. Thanks for your patience while we looked into it!
Rose