Bug:
Some bolded obfuscated characters causes text to jitter.
Example these: (){}[]I
How to reproduce:
/tellraw @p ["",{"text":"(){}[]I ","bold":true,"obfuscated":true},{"text":"Hello"}]/tellraw @p ["",{"text":"(){}[]I ","bold":true,"obfuscated":true},{"text":"Hello"}]
Still jitters with characters: (){}[]I in 1.13 pre8