Whenever I try to create a new rule to substitute a keeper for another (friendly game), I get the following error message:

Oops! It looks like there was an error. Please try again (this may be related to a server restart / high load).

Looking into it. I suppose you’re filling the fields in the “Field reassign” section cause that’s the only situation where I’ve had problems. You don’t need to do that if you wanna replace your keeper, just fill the “from” position with G, uncheck the “generic” option and select the keeper to replace the one in the field.

Yes you’re 100% correct Gabriel. I followed your instructions and it now works.

Thanks for the help!