No, that's normal.
Remember that the 'Mobile' tensioner blade is on the left on both cylinders as the drive, and therefore the cams, spin the same way and the slack in the chain is on the left hand side on both cylinders. The right hand side of the chains is under constant tension when the engine is running so there is simply a plastic guide plate to, well, guide it. That is inserted into a divot in the crankcase at the bottom and a slot in the top of the barrel at the top and is both close to the casting wall and immobile. The tensioner blades though pivot on a pin at the bottom and are pressed outwards towards the chain by the tensioner plungers. Hence the 'Gap' you can see between them and the casting.