Not sure what's happening but I am trying to design some simple panel drawings with a couple of connectors. SD7 is freezing for no reason at all. Started a new file, loaded 2 panels and 2 XLR's and same. Restarted PC but either stuck or SD7 "not responding". Loaded a much more complex file with a schematic and a rack layout without any problems, seems the Panel Layout is to blame. Both files are attached.

Any help please?