Created attachment 2263 [details] The problematic message Going to a specific message locks up claws-mail - Message available as attachment. Backtrace also available. Removing the message from the message folder removes the lock up. If you need anything else, please let me know.
Created attachment 2264 [details] backtrace
The message opens fine here, with no lock-ups, everything normal. Looks like another duplicate of bug #4430 *** This bug has been marked as a duplicate of bug 4430 ***