I steel have problems with attachements in email activity in 5.1 (crashing TDP when trying to edit attachements) but having a workaround,
I have tried to upgrade scheduled tasks from TDP 5.1 to TDP 5.3.
Automations work fine when opened and lauched directly from TDP 5.3, but crash when scheduled.
I noted that log files generated by TDP 5.3 were timestamped, not with 5.2.
I rollback to 5.1 then everything works again.
Any idea ?