One Way Glass Turns to stone

[qiraku]

Hello I have been having issues im currently using Optifine: OptiFine 1.12.2 HD U E3 Heres what im dealing with...

or tell me if it doesnt support my optifine version sorry if image is dark but the one way glass turnes into stone

[ShadowRocks2]

Same here

[VictorGamerLOL]

It is actually several blocks

[VictorGamerLOL]

And it also corrupted my world because I placed the one-way glass on top of the block mixer (from malisis blocks) and now i have to spend another 3 hours re-building stuff

[Wyn-Price]

It shouldn't have corrupted anything. Like I've said before, I'm not sure I can get it to work with optifine. It currently doesn't but I am trying to get it to work