In the version of GT++ distributed with GTNH update 2.0.4.0 (prerelease-11-final), the Void Frame was removed and it looks like there is supposed to be a shapeless craft recipe to turn any of these new "useless" frames into Oblivion frames, as seen here:

https://github.com/draknyte1/GTplusplus/blob/a580c9245097b5bddcfbab0d49d7667aec836b93/src/Java/gtPlusPlus/xmod/forestry/bees/recipe/FR_Gregtech_Recipes.java#L67

However, in game, this doesn't actually work. Going into NEI and pressing U only shows the normal research recipe, and putting a useless frame into a crafting grid yields no results. Anything I'm doing wrong?

Either magic bees isn't loaded or there's a script to remove the recipe in the script folder.
This recipe works fine in my older GTNH instance.

In hindsight, the fact the recipe isn't working doesn't actually matter, because upgrading GT++ from the previous version ended up removing all instances of the void frame from our world anyway...

Wonder if that's from the addition of @bartimaeusnek's new frames.
Odd.

The Recipe will get overwritten by the magic bees script.
Also i dont think my addition should change the old void frames...

Speaking of frames, the red frames you add have no vanilla recipe. I noticed there is one in GTNH though :p

so i guess ill rework this recipe:
https://github.com/draknyte1/GTplusplus/blob/4e5ee5845b872b09ba95dbcdaacbf7f9fbe0d699/src/Java/gtPlusPlus/xmod/forestry/bees/recipe/FR_Gregtech_Recipes.java#L110

note to myself

It's actually pointless because void frames don't even exist and any that did vanished due to the registered name changing. (Oversight on my behalf)