Horizonal Accuracy gpsh_acc -1 with wireless telemetry

Hi All

I have a Pixhawk 4 when connected with a USB cable directly to my computer mission planner gives a horizontal accuracy / gpsh_acc (usually around 0.9 to 1.5 outside) but when connected via wireless telemetry the horizontal accuracy is always -1.

Edit: in Mavlink inspector gpsh_acc is always 0 when connected with wireless telemetry but is -1 in the Quick view panel.
The correct gpsh_acc values are recorded in the data logs when connected either via USB or wirelessly.

Any ideas how to fix this.

Solved this by changing to Mavlink 2.