Trouble with faulted transaction groups

Hello Everyone,

I'm new to using transaction groups and have begun playing around with the block group type. I can get a simple block transaction group up and going just fine. But then as I try new things for example I tried adding an OPC item tag. It didn't act like I thought it would and so I disabled the group and deleted the OPC tag, but then when I reenabled the group and saved it, I got an "Unable to Start" error. I tried looking in the log for more details but all I find is a message that says "There is already a scheduled task for "group.mainexec". Even if I delete the group and add it back in. the only way I can seem to clear it is to restart the gateway.

It seems very touchy and not conducive to experimentation and I'm wondering if I'm doing something wrong or out of the ordinary.

Anyone else see this behavior?

Thanks