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• I use a translator application to post this issue.

• This is a crash. Please upload, Pastebin, Gist or copypaste the whole crash report along with this issue.

• This is a mod incompatibility. If I do this in vanilla Forge with only Et Futurum Requiem installed, it works normally.

Version number of Et-Futurum-Requiem (IMPORTANT)

2.5.0-rc1

Describe the issue (IMPORTANT)

1 - "Deepslate Bricks" and "Deepslate Tiles" slabs recipe gives only 4 slabs per recipe instead of 6, while all other existing slab recipes give out standard output of 6 slabs.
2 - "Waxed Oxidized Cut Copper" and "Smooth Quartz" does not have working slab recipe made out of blocks.
3 - also "Waxed Oxidized Cut Copper" missing a Stairs recipe made out of blocks too (these aren't as much needed as texture is same as non waxed, but for consistency sake it should have a recipe)

Mod list (OPTIONAL)

Et Futurum Requiem

Additional Context (OPTIONAL)

It's very minor issue, but I believe I should let you know of it, as I got caught by a surprise during my deepslate build :)