It looks like PT4 doesn't understand hands with no SB on ongame.fr
In the Hand history viewer it consider real UTG as second BB and MP as UTG. In the report it consider real UTG as UTG+1 even if this position doesn't exist in 6max format.
Maybe it's because of PT4 doesn't reconize ongame 6max table as 6max. I asked support for a "threat as 6max" option in the HUD or configure import but nothing came.
Here is a screen shot of the problem :
