Keep losing session periodically

[enoryw]

I keep losing sessions periodically, how should I go about debugging this? I autostart a terminal started with tmux that runs multiple nnn instances each with their own sessions. I don't explicitly manually quit the sessions on system shutdown (I know nnn doesn't (can't?) save its sessions if nnn is terminated externally i.e. not manually quitting the sessions with a Q) but I already saved sessions manually and they are restored as you would except until eventually the session is lost/reset. I also restart the tmux instance on occassion which "abruptly" restarts nnn instances (again, this is usually fine).

I do use make O_CTX8=1 O_NERD=1 O_QSORT=1 O_NOX11=1 but I don't think that should increase additional risks of losing sessions so I'm curious if there are any known ways a session may be lost/corrupt.