Activation failed. Invalid map specified

Same Issue here, i'm a bit salty cause i was juicing the maps around.
OT
Also the multithreading issue still persists even after patch , meh

I got the same issue on my 3rd tower into maps.
When hit influence I get "activation failed. Invalid map specified"

another Mesa tower with the message "Activation failed. Invalid map specified"

I was getting this same error with the same symptoms as all the other posters here. OCD kicked in, so I went to every blue node (available, not completed node) and found that I had apparently put a waystone in a node but not run the map. I took the waystone out, went back to the tower that was giving the error and suddenly the tablet worked.

I suspect that if you search all your available nodes, you will find a forgotten waystone in one. Take it out and see if your tower works now.