I noticed that Dahua has a firmware update (2026-05-08) for this camera IPC-Color4K-T80 (IPC-PDW5849-A180-E2-ASTE) on their site. I installed it on one of my two T180's, and it seems to be working well. Possibly IVS detection from the sides is better with this update. (fingers crossed)
Here is a quick test after updating my camera. Link to the firmware: IPC-PDW5849-A180-E2-ASTE
That would be awesome