My VPS tmux claude remote control sessions keep crashing.

I have a Vultr instance with 16 GB of RAM. I SSH and run or resume a tmux session, then "claude remote-control --worktree," so I can use my phone to run most of my Claude code sessions.

but they keep randomly crashing after working on long tasks, and it's very annoying. Am I missing something obvious or a quirk about CC, or should I try to diagnose the issue as my individual case?