on my 02 2nd is hard to get into nutral but 2nd to 3rd is not smooth but still works in a way.
2nd gear on 2002 Acura RSX
I just looked to see if there were any Technical Service Bulletins from Acura regarding your question but there are not. I haven't experienced this. I can only suggest the obvious check the clutch fluid in the clutch master cylinder resiviour, check that a floor mat has not slid under the clutch pedal and check the gearbox oil level.