Tvheadend

I'm fairly new to tvheadend and currently I'm running version 4.0.8 on a raspberry pi, feeding a Kodi (15.2) front end.

After performing a number of successful recordings both via the tvheadend web GUI and the Kodi front-end I recently tried to change the default Digital Video Recorder Profile to increase the DVR log retention time from the default to 9000 days. When I saved the default profile I found that all the logfiles relating to recordings made via the tvheadend web GUI had been removed and I was only left with the recordings initiated from the Kodi front end. Luckily I had made copies of the deleted log files ahead of time to compare against those remaining. What I noticed was as follows:

1. For any recording done via Kodi (none of which have been deleted) the associated log file had the following "retention" line:

"retention": 110,

This retention number matches the Kodi tvheadend addon setting which is obviously being passed through to tvheadend when creating the timer.

2. For all the recordings that tvheadend deleted they had the following "retention" line:

"retention": 0,

Now the default recorder profile was set to 30 days and all recordings have been done in the last 30 days. None should have been deleted therefore and I would have expected the log files for all of the recordings set via the tvheadend web GUI to have a retention value greater than 0.

What is happening now is that any recording I schedule via the tvheadend web GUI gets recorded and then the log file gets immediately deleted when the recording is complete (during the recording the log file again shows a '"retention": 0,' line).

Does anyone know what might be going on here? What do everyone else's log files say for the retention value? Do yours match those in the associated recorder profile?