So my friend and I use GP3 and he had built a rather large series of racks as well as adding lots of vst’s (Most legit, some demo and a couple experimental). One day the gig file would not load and GP Crashed almost immediately. I took a look at the .gig file in a couple of different text viewers and though I could see and decipher some of it, there was just way to much data to be able to safely dissect / mod it.
I then remembered I had a copy of GP on another machine here that I used my second license on but never installed anything or used…
I simply copied over my friends file and loaded it on the empty GP install. I got a bunch of errors (No VST’s Loaded, Wrong Audio, etc) I said Yes to everything and the file came up. We had an idea that the error might have something to do with the first five racks as they were the biggest and most complex. I deleted those, did a Save As and sent the new file back to my friend and Voila, the file loaded and he was able to carry on. Don’t know if this helps with anyone elses file crash issues but is worth a shot if you can do it and nothing else worked.