Sorry, I worded it wrong. I tried a longer chain (116 links) but there was no difference.
Fair enough. Still, it looks like the clutch is the culprit, but hard to know without having a working one to compare. Maybe take it to a shop if it's still in warranty, but may take ages to get a new one.
@Netakure started
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Sorry, I worded it wrong. I tried a longer chain (116 links) but there was no difference.