I’‘m not sure it’'s a Spark problem. Today i have connected with Spark to my js.com jabber account. I have my friend with gmail.com account in contacts. I have talked to him maybe 4 times before with Psi with no problems. Today he got offline, but he said it was online and he send me a message. His status in message was online, while in roster it was offline. After relogin it became online again. All the time he was online in Psi. No errors in Spark logs. He is using Miranda.
Now when i wanted to test it it was fine for a long time