OMG! IT IS FIXED!!!!!!!!!!!!!!
I just received 2018.14 less than an hour ago. I normally don't get updates 'hot off the press' (I was on 2018.6.1 as of this morning) but I noticed on the ev-fw.com firmware tracker that only 5 people had reported having this update so far.
There was nothing special mentioned in the release notes aside from the new functionality to allow the Tesla app to open your frunk and rear trunk, but when I went to do my normal "Loading Error" check (which is always futile), to my amazement - everything was working perfectly. Previously I could not listen to certain podcasts at all (e.g., Stuff You Should Know, Pod Save America, etc...) and many others would give me frequent loading error issues - but it appears to be 100% fixed!!!
Tesla Tidbits actually had this "Loading Error" issue with episodes 270-280 and mentioned it in episode 281, when it suddenly started working again (however, you could never play these phantom episodes due to the 'loading error'). I just tested these phantom episodes out again and they all play perfectly.
Obviously, I'm super excited about this - but would love to hear some validation from all of you!