I was wondering if a solution was ever found for Sign Glitch with Vendor Stalls? You spend all that time replacing the standard "Frontier" Signs on your stalls with appropriate images and while you are doing that previous signs are changed to duplicate sign just added to a different stall. Worse yet, is when you get everything looking right, you save and quit, then when you load game signs are all screwed up again.

I know it has no effect on the actual park operation, but it is frustrating to have all your efforts into making a realistic looking park (trees, bushes, benches, etc..) nullified by having Balloon signs on your Hot Dog stalls, Pepsi sign on your Safari Hat stall, etc. etc. etc.

I have this problem too. It would be nice to know how to fix it.

Same here. I've had it happen on several of my projects, most recently on my project "fèis". 

There's a simple process to follow to fix that