Bug in v6.37.1 /system scheduler

Hello

BUG in v6.37.1

I have a scheduler that works perfectly in v6.34.6, but unfortunately when upgrading to v6.37.1 not run the scheduler stored,
the code is too simple and I did a downgrade to v6.34.6 and works perfectly

please verify this because it is very important for my projects

Thanks in advance