A warning message of "Invalid Mare" appears when cancelling a breeding request.

Thanks for the report! :). Does it still let you cancel but just give you an error message, or stop you from cancelling?

This has always been there for me. It allows you to cancel but gives that message like you had tried to breed again with the same mare.

hmmm i've never had that lol

I got it once not too long ago.

Yeah, it allows you to cancel, but gives you the error message no matter what :)