Today i have tried with AC 4.4.0 on Cube orange+ which is very latest firmware with Dual Here3+ on CAN 2 port of Mini carrier board with isolation Power to the Here3+. please refer the image below.
still have facing Prearm:GPS2 Not healthy.
here is the log for that :https://drive.google.com/file/d/1wLasTHZvMxbz9I2iqrtRH_yoBZYt7Sm7/view?usp=sharing
i have checked the GPA Delta parameter for each gps and found GPS2 Not maintaining 200ms update rate.
I have checked each gps individually and both of them working normally.