I had 4 signs in gate to wild 5, now 3 of them are gone. One of them was trade sign selling birch wood. Here is screenshot: Also someone protected my sign in my spawn shop, I will post lwc removal soon, but this all makes me think something is wrong with our protection.
I see you placed a sign on ice there, if that ice melts you will lose that tradesign with no return of items so be careful where you place your signs.
thanks I though if you put sign on ice it won't melt because you can't break block trade sign is placed on. sry about sign in my shop, I forgot I replaced sign after locking it.
Essentials trade signs, will prevent normal player breaks, but not environment breaks. Placing trade signs on things like ice, and sand/gravel isn't a good idea, because these can be moved, causing the sign to detach.