It seems to be a fairly common problem on cheaper/mid-range headphones with plastic builds. I had some Shure SRH840s about a decade ago and they broke in a very similar fashion, but it was too difficult and expensive to repair them. Since then, I’ve only bought headphones that are fully modular and user-repairable. My main pair is the AIAIAI TMA-2 Studio, I’ve replaced several parts on them over the years (including the headband which lasted a long time but eventually broke last year).
I have a big head, so every pair of headphones I’ve used will eventually break there. At least these can be repaired.
It seems to be a fairly common problem on cheaper/mid-range headphones with plastic builds. I had some Shure SRH840s about a decade ago and they broke in a very similar fashion, but it was too difficult and expensive to repair them. Since then, I’ve only bought headphones that are fully modular and user-repairable. My main pair is the AIAIAI TMA-2 Studio, I’ve replaced several parts on them over the years (including the headband which lasted a long time but eventually broke last year).