Ok, thx for help. It partially resolved problem.
If I create nodes in “MyController” blueprint I start to see projectile. However if I create it in “MyCharacter” blueprint I still get nothing.
Also as you’ve said I had no velocity set and it was partially reason why I did not see projectile. However. second problem responsible for it is that for some reason my projectile spawns from floor ground and not from character. Even if I move him, projectile always comes from a fixed point of floor. I assume that’s because I have to use “Get Actor Array Average Location” node instead of “get actor location” node as it does not appear in my blueprint if I try to find it in “MyController” BP (unless I go to MyCharacter blueprint). If I try to copy all my nodes to MyCharacter BP it does not fire as seen from both debug and outliner.
So these two things have me really confused now, why my nodes fire in one BP but not another (MyController vs MyCharacter) and why I can find a specific node in one BP but not another (i.e. Get Actor Location).
Sry if this is something basic, but I’m complete newbie here 
ty for help!