My dB didn't gave errors either, all checks showed OK, although there were mismatches on the content of the tables that caused the delay. After switching to a clean MSSQL dB the problem is solved. Then i set up a clean MySQL dB, problem solved for 1 day, then i had the delay again. MSSQL still runs rock solid.Yes I'm using TV, but I'm pretty sure the MySQL is not the problem (or it's not corrupt files anyway) - I run a batch file regularly to run the auto repair command.
We're expecting an issue with the SQL statement(s), but haven't found the cause yet.