Ragnaros rendering glitch

When the Ragnaros model is first rendered at the beginning of the match, there is some kind of artifact stretch to the bottom left of the screen.

Have seen this happen with various skins:
https://imgur.com/a/UuddXuJ

Yeah, this is annoying, especially with skins, but with the current state of HotS they will never fix it.

Has existed since he was released. I suspect it is due to his molten trail having no past information when he is spawned in, so it projects to some default position until it gets that information.