Tvheadend

I have recognized that skipping parts in timeshift playback breaks it.
That means you start recording by pressing pause, wait some time before start to view it.

If you press for example -10 minutes it often occurs that the "pointer" jumps back to the beginning of the timeshift.
Then you need to ff, but you never reach the end of the timeshift. It stops at some point with ff.
Pressing +10 mins works one, two times and after it you are at the beginning.

I have checked the buffer folder, all files are created (don't know if they are good but they are there).

Nothing special about timeshift configuration:

{
"enabled": 1,
"ondemand": 0,
"path": "/mnt/media/hts/timeshift",
"unlimited_period": 1,
"max_period": 3600,
"unlimited_size": 0,
"max_size": 10000
}

I will attach a log with debug log soon.