Don’t have an answer for your belt issue.
I would check if any of the power steering fluid got behind your timing belt covers and onto the timing belt. I had my high side hose pop spilling fluid everywhere but never thought to check the timing belt. Then last weekend I found that the belt was all cracked and had a sheen to it. There was also a tar like substance all the way at the bottom by the crank shaft. I’m pretty sure that it got soaked with power steering fluid when the hose erupted a year ago. Take the top cover off first to check. If your belt looks shiny or wet, then you might want to take the bottom cover off too. You will have to remove the crank shaft pulley to get the bottom cover off which can be a difficult task without the right tools. Putting it back on is even more of a challenge. Have to torque the bolt to 181 ftlbs. If you have a scope camera then maybe you might be able to snake it around the belt to see the bottom.
If you haven’t done the timing belt yet, now may be a good time. If you’ve done it recently, then more of a reason to check it for PS fluid. Don’t want it to fail prematurely.