Sorry for the crashes, have you sent the crash logs to support@lnav.org or opened an issue on https://github.com/tstack/lnav/issues ? I try to take a look at crash reports, but I’m not always able to figure out the issue from just the logs. If you have some time to spare in replicating the problem, I can take a deeper look.
I do try to submit the logs when I can. tbh, it takes a combination of (In/Out) text filters along with some navigation to trigger the failures. If I re-encounter, I will try to spend some time to reproduce.
You can find the last failure I submitted here[0].