Bugged tower

Well, I figured out a new bug related to tower, this bug is simply that suddenly a tower or more gets bugged, by bugged I mean that it is not able to upgrade, sell or even set strategy.
The possible way to reproduce this bug is:
1- Have some ping lag + fps lag
2- Keep changing the strategy while upgrading the tower
I thought of these steps to reproduce the bug because it is related to giving much orders to the tower than it can stand.
NOTE: When a tower is bugged, it does not appear for other players, only for the one facing the bug.
The possible way to reproduce this bug is:
1- Have some ping lag + fps lag
2- Keep changing the strategy while upgrading the tower
I thought of these steps to reproduce the bug because it is related to giving much orders to the tower than it can stand.
NOTE: When a tower is bugged, it does not appear for other players, only for the one facing the bug.