Can you really blame a company for not helping with your issues caused by 3rd party unoriginal parts?
But regarding parts not matching despite 3rd party sellers claiming they do, it is quite common for these cheap Chinese printer manufacturers to continuously develop products (both in terms of functionality and production price optimization) with no publically available official versioning to distinguish them.
It's kind of crazy that slicers still attempt to make something like curved bridges.
I had a 300mm long part with a 10mm wide slit in it along the length of it, no matter what I did (bridge setting or part orientation), the slicer insisted to create the bridges for that slit parallel to the long direction, attempting a 300mm unsupported bridge, instead of orthogonal so it was only 10mm bridges.