Very few hours in the day for me. Many users, and many reports.
Your log shows the issue is present with TVHeadend.
Are you ignoring me ;)?
Seriously though: lighten up. If settings revert on a reboot, it’s almost always a hardware issue.
Try another SD / power supply, and let me know if the problem persists. We have good ones at https://osmc.tv/store.
If you ever need to get in direct contact just PM me. I read almost every post on this forum now, but don’t always reply, as often enough, someone can chime in with some advice and it saves me a little bit of time.
Try Jarvis first. If you still get problems, it’s worth exploring your setup / peripherals.