Seems to have poor compatibility with my mod, Rustic Regenerated: https://www.curseforge.com/minecraft/mc-mods/rustic-regenerated

I'm trying to figure out how to fix all the issues, I'll post here as I learn more.

Okay, so, I have to add both versions of my crossed logs to the crafting blacklist so it doesn't prevent turning normal ones back into sticks. Can I have my mod modify the default config options for that or something? Also, my slabs have a couple of wierd rendering issues:


The second one is probably cause I rotate my slabs an absolute ton, and also I rolled my own vertical slab class and it may not be getting auto-detected or whatever? :/

Whoops, I downloaded the updated version but forgot to actually install it. Ignore this!

Oh wait, uh, actually it supports Quark but not other mods that add vertical slabs when Quark is installed. Not sure if I should reopen but I don't want to spam.

If you could list the other mods which aren't supported for the vertical slab feature that would be great!

One I've found is abnormals core which seems to add them and is used by quite a few mods

Abnormal's core is supported in the latest version

Oh awesome, that's the one! Thank you!

I'm adding Enhanced Mushrooms to the list of unsupported vertical slabs

World of Wonder is another, added in it's most recent update.

Some other mods that add vertical slabs include Extended Mushrooms & Endergetic Expansion.
I've also noticed that normal slabs cannot be placed together with vertical slabs. Is that intended?

Cattail & Duckweed Thatch Vertical Slabs from Swamp Expansion was also missed.

The mod Lord of the Rings also adds in vertical slabs, but these are placed by placing regular slabs on the side of blocks or by holding shift.

The mod Cubic Villager adds in a villager slab, which can be placed on any block face.

Some other mods that add vertical slabs include Extended Mushrooms & Energetic Expansion.
I've also noticed that normal slabs cannot be placed together with vertical slabs. Is that intended?

Cattail & Duckweed Thatch Vertical Slabs from Swamp Expansion was also missed.

What do you mean by normal slabs cannot be placed together with vertical slabs? Please ensure you are not sneaking when trying to combine slabs with vertical slabs

Oh, by that I meant that I cannot combine Quark's vertical slabs with a normal horizontal slab from vanilla or other mods.

Vertical slabs from this mod works correctly with normal slabs.

Weird, that should work. Just check that you aren't holding shift when combining them.

I'll try again to be sure

The mod Lord of the Rings also adds in vertical slabs, but these are placed by placing regular slabs on the side of blocks or by holding shift.

The Lord of the Rings mod, from what I've seen as they don't provide any source code, physically replaces the default behaviour of regular slabs to make them work with vertical slabs. Hopefully it is possible for me to add support for this but there may be compatibility issues

Cattail & Duckweed Thatch Vertical Slabs from Swamp Expansion was also missed.

That should be fixed in the latest version!

Thanks! With Lord of the Rings installed, I can't place a slab horizontally when right-clicking on the side of a block because the behavior for that mod is to shift-right-click to get the horizontal slab, while this mod requires the opposite, shift-right-click to get the vertical slab... Which was the main issue for me. :D

Is there a config option to require shift-right-click to get a horizontal slab instead of vertical?

Also, I think the Endergetic Expansion mod was missed for its vertical slabs

Endergetic Expansion should have been included. Which slabs are not working?

The mod Styled Blocks also adds in vertical slabs, called Upright Slabs.

I'll try to check the Endergetic mod, I forgot what the blocks were called.

Forgot to check until now, the Poise Vertical Slab and the Eumus Brick Vertical Slab from Endergetic cannot be made into a double slab. And is support for Cubic Villager mod possible?

Placing a vertical slab from Natura, on grass, causes a crash.

Minecraft 1.12.2
Forge 14.23.5.2854
Biomes O' Plenty 7.0.1.2441
Double Slabs 0.11.0
Mantle 1.12.1-3.3.55
Natura 1.12.2-.4.3.2.69

Reproduction:
1 Find a block directly adjacent to grass.
2 Place a Maple Slab from Natura down, on the side face on the block, where it would normally delete the grass block.
3. Immediate results, crashes to desktop.

Crash-logs:
crash-2020-09-29_20.34.07-server.txt

(Separate crash to narrow down mods, may provide additional info)
crash-2020-09-29_20.30.21-client.txt
(Suspected Advanced Rocketry as OpenEye threw that at a result on a much larger pack.)
That crash report...
crash-2020-09-29_20.13.01-server.txt