I work for a dealer, albeit no longer with kubota dealer
you wouldn't believe how much equipment comes through that has aftermarket fluids and filters, that has engine or transmission problems. Nobody believes it, and I'm told to keep quiet about work related stuff, so that's that.
but it happens. Now does that mean the filters/fluids are the problem? Maybe or maybe not. Maybe it's because the owners don't care enough about their equipment and they abuse it, then "maintain" it with aftermarket cheap stuff, I don't have explanantion for any of that.
similarly if I walk through a junkyard, and looking at the thousands of cars in the yard, the ones that say "bad engine" often have a bright orange filter dangling off of them...real common. Pretty rare to see one with "bad engine" on it, that still has an OEM filter. Just sayin'.
take it however you please. I've learned to use OEM stuff even on my 20+ year old equipment. Kinda hard to go wring with that stuff. One time in 34 years have I had an OEM filter ever give problem and that was because the threads were cut incorrectly.