Im having this problem since 1 week. Every time I go on a walk and want to listen to my podcasts (apple app) using cellular data on my Apple Watch Ultra, the podcast episode starts to stutter and pausing and playing (like it's buffering like a Youtube video) after like 30 mins of listening. I thought it was my Apple Watch signal/reception problem, but I realized that I have unlimited data and the bars are almost all the time at 5 (fully). Also, I switch to other apps to listen to my podcast and works perfectly. I used WatchTube and other podcast (local radio) app and NEVER stutters and works greatly even at low signal reception. There's any workaround to fix this?