526x loading problem on lunar client 1.17.1

[UnstableDrag0n]

I downloaded the 128x version of pure BDcraft yesterday (5/9/21) and it worked fine. This evening at around 6:30 I downloaded the 526x version of the PureBDcraft. (I use Minecraft 1.17.1 with the lunar client) For some reason the 526x version did not load properly and ended up kicking me back into the title screen. A little while later I tried using the 128x version again but that wasn't working either and ended crashing the lunar client completely. I have tried uninstalling both textures and reinstalling and i have tried restarting minecraft completely, and i have also tried restarting my pc, but it still hasn't worked. Does Anybody know how to fix this.

[HanFox]

What graphics card do you have? Are you using OptiFine?