I've been having issues with the semaphores and Events in general. I believe the issues are self caused due to not really understanding the Events setup
in mystic. The first thing I noticed was mailin was failing and found when I did a restart it worked fine. Generally I found in time the whole Event setup seemed to stop working. I also noticed mailin was Event 10 or so and mailout was Event 5. So Events appear to run from 1 to whatever is last. I have now moved all my semaphore events to the top of the list and put loglevel-3 so
I see more of what's going on.
So, if you are having issues with semaphores in mystic, try moving those
Events to the top (1-5 or so). My reasoning is semaphore run Events are the most likely to work and less likely to hang things. Also put loglevel up to
3 or fully debug level so you can see what's going on in the logs. Being Linux I put rare Events that stop working in cron with full paths and will be working to get then all back to Events when I figure out what I've done to hang them ;)

--- Mystic BBS v1.12 A47 2021/04/08 (Raspberry Pi/32)
* Origin: Mystic Pi BBS bcw142.zapto.org:23 (21:1/145)

On 11 Apr 2021, bcw142 said the following...

I've been having issues with the semaphores and Events in general. I believe the issues are self caused due to not really understanding the Events setup in mystic. The first thing I noticed was mailin was failing

perhaps as an exercise .. do you have "Page Sysop" configured on any of your menus?

you could change it to do something like:

GP - Page Sysop For Chat
!C - Create Semaphore File

and attempt to make the events system send you emails after a user tries to page you.

or perhaps create a sysop command for the message menu that creates the semaphore for triggering (so in this case "forcing") a message poll.

--- Mystic BBS v1.12 A47 2021/04/08 (Windows/32)
* Origin: cold fusion - cfbbs.net - grand rapids, mi (21:1/616)

On 11 Apr 2021, fusion said the following...

or perhaps create a sysop command for the message menu that creates the semaphore for triggering (so in this case "forcing") a message poll.

I already have full controls to force those things in the Message Menu.
Anyone can force them if they think it will help (if it's not working it
will help). I'm letting it play out with the current A47 (6/7) to see if
it will stay working.

--- Mystic BBS v1.12 A47 2021/06/07 (Raspberry Pi/32)
* Origin: Mystic Pi BBS bcw142.zapto.org:23 (21:1/145)