Well, might there be a difference in chain size ?
Ok, I assume we all go with the stock 530 or aka DID50 chains. In the end this specifies the “inner” dimension of the chain and form of sprocket teeth.
I typically use high quality O- or X-ring chains, no standard chains without any rubber rings in between.
No idea, if the link plates are smaller or larger with the different chain types.
Maybe that is the reason, if the chain can “touch” the clutch pushrod or not ?