Every now and then between 2 3 and 4th gear my gearbox seems to what i can only describe as stick in neutral. Its mainly when stop start driving round town. My head tells me its something to do with alternator power output. Hoping its not a sign of the gearbox on way out. It's had a fluid change before i got it not at volvo and not sure what fluid was used. It hasnt been plugged in for software updates yet. Hasnt thrown any messages up on dash either.
Most of the time it's fine just every now and then it does this.
Any tips?