Wattbike Atom RPM dropout and Gear change delayed alert

Hi, I recently set up my Wattbike Atom with Zwift on an ipad pro.

I have updated the firmware on Wattbike app.

Unfortunately the RPM drops out to register 0 fairly frequently during a session but the wattbike is not effected as the power remains constant and it shows the RPM on the Wattbike app ok.

It also is slow in responding to gear changes on zwift even though the gears change immediately on the wattbike. This is something like 2 to 3 second delay in the change up or down in zwift.

Can any help advise how this can be fixed?