Tvheadend

Hello,

I have been seeing the following error on my Synology (88f6281) with Tvheadend 4.1.2309

tvheadend: src/epggrab/module/psip.c:78: psip_status_destroy: Assertion `st->ps_refcount > 0' failed.

And, here are some background information:
- This doesn't seem to be a new bug. It has been happening since I switched EPG source from XMLTV to PSIP few months ago.
- "Over-the-air: PSIP: ATSC Grabber" is the only enabled EPG Grabber in my setting.
- This error happens only when auto-recording same title programs back to back. But, auto-recording back to back same name program doesn't always cause this error.
- This error happens soon after the recording of the same name program starts.
- There is no warning or error message before this assertion error.

I don't know if they are related to this error, but I'm seeing following EPG related problems, too:
- Occasionally, autorec records a program with completely different name (which doesn't match the regular expression). My autorec settings have empty channel and channel tag, but the wrong recordings are made from the channel where the intended program was broadcasted.
- It's very rare, but multiple recordings happen at the same time with one autorec.

Please let me know if there is anything I can help to root cause this problem.
Thanks,
Susumu Arai