See the two attached crash reports.
One happened while trying to place a red sandstone slab on another. The 2nd crash happened when I middle clicked.
java.lang.IllegalArgumentException: Cannot get property bej{name=variant, clazz=class bav, values=[stone, sandstone, wood_old, cobblestone, brick, stone_brick, nether_brick, quartz]} as it does not exist in bds{block=minecraft:stone_slab2, properties=[half, variant]}
at bdv.b(SourceFile:112)
at bau.a(SourceFile:117)
at ath.j(SourceFile:821)
at awf.j(SourceFile:146)
at bsi.aw(SourceFile:2095)
at bsi.r(SourceFile:1792)
at bsi.as(SourceFile:874)
at bsi.a(SourceFile:311)
at net.minecraft.client.main.Main.main(SourceFile:120)Linked issues
is duplicated by 20
MC-65513
Picking Red sandstone slab in creative mode crashes the game
Resolved
MC-65519
Game crasher when using pick-block on red sandstone slab.
Resolved
MC-65607
When I select red sandstone slab with middle mouse button I Crash
Resolved
MC-65610
Using the pick block button(Mouse Wheel Click) on red sandstone slabs crashes the game
Resolved
MC-65617
Crash when using the Pick Block function on a red sandstone slab
Resolved
15 more links
Confirmed