[Bug] Classic end portal parallax turns white during certain conditions

[Turkey9002]

There's currently an issue with how the classic end portal parallax tweak works. It'll end up turning white or glitchy and you can do this by spawning an Eldritch Guardian from Thaumcraft nearby or flying upwards and looking down at the portal to see it slowly change to white (this can occur much more easily when having a low render distance). This does not occur with the vanilla parallax and I've tested this without any other mods.