Form Signatures not working with behaiviors

I have a cloud account with Forms and we have a behavior that when a selection = signature, the required, else hidden.  Signature works fine if there is no behavior on it, but when behavior is on, you can not sign in the signature field.  This is consistant.  Has anyone found a solution for this?

https://www.docuware.com/sites/default/files/forums-images/signature_behavior.png

https://www.docuware.com/sites/default/files/forums-images/cant_sign_if_behavior_on.png

Does unchecking required have any affect? Just curious.

Just tried and it does not have any affect.  Still not able to sign.

Michael, I am testing with on prem V7 with the 12-07-18 install pack. I am not having this issue. I have tried multiple forms. Have you tried using a different web browser? Or maybe tried it on a mobile device? 

Same behaivior on Firefox and Chrome as IE and Edge.

Thanks Casey.  Just heard from support that this is a known bug.  Will be fixed in next update.

good to know. thanks for the update!

I'm just adding that I reproduced this issue in the DW7_2019-01-18 installer also.