Sorry, you need to be a little more specific as there was a small glitch on an early version having said that, no guarantee this relates to your problem.
Additionally, is it one particular station, we won't hold it against you if it is a station we never listen to
On a personal note, I have Gold UK on most of the time, in SE England, and I get signal loss in certain areas pretty much all the time. Occasionally it is worse, depending on the weather, in the same areas.
This does not appear to be unique to the Kadjar as I have a works vehicle that the issues are replicated in, not a Renault vehicle