I thought this was a DMS issue, but Resin informed that this is an actual game issue that I had discovered.
I have 2 Titans under a T2 Mobile shield generator, and noticed that when the Bubble shield got damaged, the titan shields were equally effected, and were also damaged.
Please fix this issue >-<
The map was Setons Clutch. DMS, and 4DC were active at the time.