Lora32 v3 - Poor rssi close range

I have 2 of the lora32 v3 boards and uploaded the factory test example (v1 as v2 wouldn’t compile)

The device connects and I do get the ping pong for about 20 or 30 packets then it hangs.

rssi is also very low (-115) this is at a range of less than 1m up to 15m.

The example sketch I am using is unaltered and I have tried 2 different antennas.

Any help with this would be appreciated.

Is it an open environment, or check if HF and LF match