I've been waiting for an update with others in their discord but it's been crickets after a vague post :
Hi everyone,
we're currently experiencing some technical issues about Mysarium and we're already working to resolve them as soon as possible.
We apologize for the inconvenience and thank you for your patience. We'll share more information as soon as we can.
Thank you for your support.
(Posted July 17th)
Other than that, people have connected it to an artist making a very vague claim (not mentioning the game or dev studio by name) that A game had copied their art. People are waiting for the dev studio to say more but it's been very quiet and disappointing.