While writing this Idea, I ran into this problem:

As you can see from the little scrollbar there, this error is LONG.
As you can also see, this error window is on a single line.
It is also impossible to select and copy the message into another window to see it all at once.
Please update the window to be multiline and selectable.
It appears that it's meant to be rich text, given the html in there, so this may be a version error on my end. If that's the case, I'll edit this Idea to only talk about being able to select the message.