Activity doesn't seem to work correctly.

[Mindstyler]

It would seem that the discord api to set the join and spectate secret does not work. On a separate c# project everything works as documented by discord, but on my new java project sending an activity payload with the join secret and / or the spectate secret set (as well as the party and id set of course) will not show the corresponding buttons inside discord.

[Mindstyler]

Could be related to #56

[LakyLuc]

for me the join secret with button works but the spectate secret does nothing