Custom flags allows 'bad' options

[techie2000]

I added the --crtimes flag to the Custom flags option and saved it. It was accepted without warning/error. When I then try and run a sync, unbalance hangs and the only way to recover is to Enable unBALANCE Server = No, and then again to yes to re-instantiate.

Running from cli IDs why it fails

rsync: This rsync does not support --crtimes (-N)
rsync error: syntax or usage error (code 1) at main.c(1746) [client=3.2.3]

The input form needs to validate what is input before committing, or the error when running with a bad option needs to be trapped and the user returned to a recoverable state (preferably with details of the error so they can fix it)