Tellraw just doesn't work. No matter what I do, it says "Invalid json: malformed JSON at line 1 column 3. I am aware that this was an issue in a previous snapshot that was supposedly fixed. Well, it's back now. Either that, or the usage of Tellraw has changed, but I haven't seen anything about that in the patch notes. Can people verify that this is in fact correct usage below?
/tellraw @a {text:'Yo'}
Linked issues
Comments 2

Duplicate of MC-83460 – If you searched the tracker before creating this report, and were unable to find the indicated ticket, please comment with the keywords you searched for so that the original report can be improved.
WAI. Per MC-83460, you now need quotes around the keys.