It's not something that I have ever experienced with Ohlins forks.
Torque spec on upper and lower triple clamps is 15Nm. When torquing the lower make sure you alternate between each bolt till the torque wrench does not rotate before clicking.
If the bike has ever been dropped it is possible the left and right fork tubes have shifted slightly in the clamps, this could cause binding.
Measured stick out of the fork tubes from the upper tree should be identical. Just make sure you take the readings from the same place as the top clamp is cut at an angle.
Also worth checking your preload, compression and rebound settings.
Preload - Use a (15mm?) box end wrench or socket to turn the cap clockwise, count the turns till it bottoms out. Believe factory setting is ~6 total turns. Make a mark on one of the bolt flats for easy reference. Check both L & R tubes.
Compression and Rebound - Using a 3mm allen driver turn each adjuster clockwise till they bottom out (use light pressure when turning). There are detents between the positions count the clicks or the number of rotations. Factory is ~ 6-8 clicks (1.5 - 2 turns).