Back to the Topic!
Oil line from engine to Cooler this is the one from near the Oil filter housing
Looks a bit Twisted,, Because it is!
Pretty poor workmanship, I know exactly how it has happened as Hydraulics is a Trade I worked in. Even had my own business and would have been ashamed of myself if I produced it.
This hose was made with incorrect orientation then Twisted to fit causing the Hose to Collapse.
It may be a "one off" but more than likely not, if you can stuff it up once then your probably likely to keep doing the same thing.
Looks bad enough with the rubber cover ( covered because it is not stainless steel !) and worse when the cover is removed.
I have heard on ADV forum long back ( before they Tossed me !) of someone else complaining of a damaged oil cooler line.
Un covered the damage is more obvious.