Thank's

Hello, I have probably beginer problem but I stuck here... I hawe 3 animations and tey need to be mix in tracks but vhen I start preview with first animation and then add track 1 with another animation some elements simply disapear. What I do wrong?

Your license information:
Name: <removed>
Email address: <removed>
Date: 28 Apr 2017
Order number: <removed>
Order total: $299
License type: Professional

When I try run Spine after I paste licence number I goth message: Sorry, the server could not be contacted. Please check your internet..... I can't figure out what is going on? It is not internet or firewall problem. I start working on this firm later, and a colleague who works before me left a job and I take his duties what take also work on Spine. I instal Spine on my computer and couple tasks I finish without problems and after a pause after one month Spine do not want work. Please help.
Thank you,
Miroslav Pavlovic