Heart Rate Data Lag

Hi, I’m a long time zwift user and decently savvy with the tech. I’ve noticed all of a sudden with my recent workout that my HR data has a very long lag time behind when it actually occurred and it’s not aligning. This is showing up in the HR graph in game in real time and it’s reflected identically in the data file after upload. I did this interval set three times during this workout the lag was identical across the entire ride. Any ideas?

Bluetooth broadcasting from a bicep hr monitor via bluetooth to macbook pro. I’ve done many rides with this setup and no issues, i use the same monitor
without this lag with my wahoo for outdoor rides.