The site sometimes shows incorrectly, due to the style sheets not loading. PowWeb isn't actively causing this, but their web server is not returning the files, sometimes, and they are not trying to fix this. Actually, their server is sometimes stating that the files do not exist. Unfortunately, the issue cannot be duplicated on demand. Further, the issue can orrur to one person, but not to another person, at the same time. Worse, the issue seems to getting more frequent. Since the files do exist, there is not a lot to be done on our end.
One evening, I had resolved to get to the bottom of this, but could not get the failure to occur on any of 3 browsers (Firefox, Edge, Chrome) on any of several desktops, 2 laptops, 2 tablets, and a phone, over a 4-hour testing period. Every time this occurs, I can see the error in the log.