The simplest thing you could do is to export the regarding rackspace (including its variations) and upload it here, so we can have a look at “the patient” ourselves. This would make sure that no detail is forgotten or overseen and every available information is given.
I personally think, this is always the fastest and most reliable way to get help with an issue.
TIA 
I will if it happens again.
I was on stage and couldn’t be messing about with fault finding, so just deleted the panels. These worked fine 3 days prior at rehearsals. I may have edited something in those rack spaces, but didn’t add the drawbar widgets, they have always been there.