The (replaceable) hanger has been bent backwards a bit. The frame under it may be bent too.
Ah so that's what's going on! Thank you.
I've found a replacement hanger. Do you think the new hanger would be strong enough to hold the axle on its own? Or do I need to bend the frame back for additional support?
If it is an aluminium frame that is bent then it is pretty much fucked.
...do I need to bend the frame back for additional support?
Yup probably, but as Dancing James says, probably it's fucked.
@Benedict started
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The (replaceable) hanger has been bent backwards a bit. The frame under it may be bent too.