No, so ramp up log levels to DEBUG first via Karaf console to narrow it down:
org.eclipse.smarthome.model
org.openhab.persistence.mysql
and probably some others, experiment a bit.
Also add debug output lines to your rules as shown in the logging docs link to find out where they stop.
There’s also the chance that your system is corrupted due to SD card wear out, so also check your system logs for errors. SD corruption is infamous for producing seemingly irregular problems like these. Unfortunately there’s no reliable indicator to find out if that happened to you.
If you don’t find anything that helps in investigating, I’d suggest to setup your system from scratch using a new SD card. Read and follow this post this time.
You can use openhab-cli backup/restore to migrate your OH config.