That happened to a friend of mine, her first horse actually. She purchased a gelding on Trainer’s recommendation. He was a 7-9 year old OTTB who’d already been restarted as a jumper and was currently doing some low-level showing. Horse wasn’t suitable for her for a variety of reasons, but they had a tough time keeping him sound within a year.
My friend wound up temporarily moving her gelding while they were dealing with some hoof issues. The horse wound up needing special shoes and was later diagnosed with navicular. They moved back to the original property (different barn) and trainer for a bit. After that relationship fizzled out, she got a new trainer but the gelding was still not that ridable. She wound up having to retire him within under 3 years because his navicular was so bad. Her new vet looked at the PPE x-rays and pointed out several glaring issues; said he should never have been cleared to be someone’s potential showjumper.