Blocks are showing as the wrong textures and it causes some blocks to be unbreakable.

Black Shimmering Mushroom (botania) - Stairs
Misc Block - Stone Brick Wall
Inert Crystal (Elemental Craft) - Boneless Growth Shrine Upgrade (Elemental Craft)
Lavander (druidcraft) - Yellow Bedroll (druidcraft)
Amber (druidcraft) - White Bedroll (druidcraft)
Misc Block - Solegnolia Petite (botania)
zinc ore (Create) - haunted bell (create)
Marble (building blocks) - Ender Watcher (redstone)
dripstone (decoration Blocks) - Amethyst (Decoration Blocks)
Dripstone Block (building Blocks) - waxed weathered cut copper slab (building blocks)
Calcite (building Blocks) - Floating bubbell (botania)
Smooth Basalt (building Blocks) - Deepslate Brick Wall (decoration blocks)
orange shimmering mushroom (botania) - orange petal block (botania)
Blue shimmering mushroom (botania) - Blue petal block (botania)
Yellow shimmering mushroom (botania) - yellow petal block (botania)
Silver ore (ice and fire blocks) - pile of silver (Ice and Fire blocks)
Frosty Blossom Sapling (decoration blocks) + flower pot (decoration blocks) - frosty blossom leaves (decoration blocks)
Misc Block - Obsidian Pressure plate (redstone)

The first one is what the block actually is - the second is what the texture shows - and then the (word) is what mod each block belongs to.

Floating Silk Touch Shrine Upgrade (cant Destroy) (Elemental Craft)

blocks do not drop visible items when destroyed even though the item has been dropped

Disappearing Blocks

these are just a few issues that I am running into

It looks like this last update to 4.0 ended up fixing the problems I was having