Windows 7 64 bits
CPU: Intel i3-4170 3.70GHz 2 Cores, 4 Logical Processors
GPU: NVIDIA GeForce GTX 970
God Mode Enabled
Here is the video replicating it. Showing a functioning Garrison (dmg buf and life regen), then loading and losing its power on defenses:
The next 2 videos is how a player resolves the problem so far, and how the bug interacts when you update the state of the Garrison and Defenses.
Selling and buying the Garrison.
Selling and replacing the defenses.
Customer support service by UserEcho