One of my towers went missing while upgrading it. It shows up as a ruin. Can not be seen in the minimap or while testing my defense. Moving it around dosnt change the situation either, it keeps as a ruin and invisible while raiding.
Looks like you are building a new one instead of upgrading an existing one.
It does look like that because flare always gets something broken when an update goes live. I had a skull tower there and it costed me 3,5M to upgrade it. And guess what, i wont use gems to prove me right (if I dont really get a new level 1tower, who knows…).
I agree with orko, look an awful lot like you accidentally started building a new skull tower
Wrong friend. It only looks like the game is bugged, like my still missing sonic blast aura…