Here is an example: Copy this command to test it

/title @a title [{"text":"A","obfuscated":"true"},{"text":" Test ","obfuscated":"false"},{"text":" A","obfuscated":"true"}

the 'Test' as you can see in command, there is a state obfuscated = true, but text between the 'Test' is in state obfuscated = true. This will make the 'Test' text be glitchy. (sometimes)