Nate, you're right.
Spine is downloading version 3.0.00 again and again, I hope not be suspended for multiple number of downloads. 
Regards.
Spine 3.0.00 doesn't run [solved]
Can you guys with the Bit Defender problem try downloading the latest launcher? It no longer uses a JAR file, so maybe this stops your antivirus from deleting Spine's files.