Depth sensor not registering in cockpit

I am having a problem with my depth sensor not showing registering in cockpit.

In BlueOS when i try to calibrate, it is not possile i get the following message: Calibration failed with status: MAV_RESULT_FAILED

I am runing 1.19.0-beta.1 and **Board name:**Navigator Mavlink platform: navigator **Firmware version:**4.5.7 (STABLE) **Vehicle type:**Submarine

Everything was working great yesterday, but yesterday evening I had to replace my navigator board and the raspberry pi (new from BR this week) in my second ROV , I did that and after a lot of issues with getting cockpit working on that I finally managed and the depth sensor is registering and working all ok through a very generic widget ..RelativeAltitudeIndicator..

I have spare new Baro depth sensors so I tested them on it and it still did not register , for some reason I was unable to find the same .RelativeAltitudeIndicator..on the problem ROV .

I see that some readings are coming through on Mav link

even although the depth sensor is not registering in cockpit , the depth widget shows depth values jumping between 0.2 -1.2 m

I have tied VRL HUD alt etc , but I was not find the a woking link :-/

Anyone able to assist me with getting the depth sensor register and wok in Cockpit ?