I am also facing same issueThen I reset watch but issue could not resolve.When I go to the service center they told me this is display issue you have to change it and it costs up to 5500 rs.If this is display issue then why this same issue facing so ...

Yes jio 5g works properly in nord 2 because nord 2 get separately update for 5g settings

I am also facing same issue only for jioAirtel 5G working properly