P025A code

So I’ve been having some problems with my cat. If I got anywhere from half to WOT under like 65 the car would stall a few times in 3rd before it would upshift to 4th and continue on. On my way back from scheduling an appointment at the dealer for it it finally gave me a P025A code. I’ve seen a couple other posts about it but nothing similar to the issue I’ve been having. Just wondering if anyone else has noticed something like it? I’ll try and get a video of it posted here soon