Ok - hit me over the head, but asking I hope a helpful tech question. Did you copy and paste the key, or hand type it?
If the first, after c/p, put your cursor into the key before first letter - hit the back key twice. That eliminates invisible coding you accidentally grabbed.
Then put your cursor at the end and hit the back key until you only erase the last char, and re-enter the last char. If any back data crawled into your paste, this will resolve without hand entering - it will correct the error. This honestly applies to any c/p to any field. Some systems have coding to remove it and convert to char. Some do not.
Was the station removed, or did you simply stop sending data? Is there a chance you’re sending duplicate? Suggestion: try sending a much smaller upload. It could be a time out behind the scenes.
