When summoning wither while facing north (wither structure thing is facing south), it doesn't spawn and instead just stays like that (only tested with north and west and only north is broken). Also, wither health bar doesn't go up when summoned. Instead it's full and so the wither just grows and explodes without knowing when.
(Couldn't replicate north thing)
Environment
OS: Windows 10 Pro 1903
Java Version: Java 8 Update 202
GPU: Sapphire NITRO+ RX 580 Special Edition
CPU: Intel i5-6400
RAM: 12GB and 2GB allocated to the game
Game Version: 1.14.3 - Combat Test
VSync: OFF
Render Distance: 16
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