Solidworks Electrical changing my sheet size in Solidworks Mechanical

My Solidworks mechanical drawing is not maintaining the correct sheet size associated with the loaded format. When I save it is correct, but upon reopening the sheet size reverts back to the a custom sheet size. When I was on a call with my reseller, they turned off the Electrical add-in within Solidworks, reloaded the format, and saved. Wouldn't you know it, when the drawing was re-opened the format sheet size stayed correct. As soon as I turn back on the electrical add-in, the format reverts back to the wrong custom sheet size again. grrr….  Anyone know what configuration setting in Electrical would be hijacking my Solidworks format in Mechanical? I have attached a screen snapshot of the issue. Has anyone else experienced this issue?

SolidworksElectrical