Afterburn not showing in viewport

[BaldEagle]

After adding Thinking Particles as the source particles, and then selecting Show in Viewport, there are no spheres in the viewport. However, they do show up when rendered. Also, when I select different sized spheres in Particle Shape, they are all the same size when rendered. I can't see the results of selecting the sizes in the viewport as mentioned above. Some help please. I'm running Max 2016, and AB 4.1.4.

[sitnisati]

Hello,

Particles should have a life span - in TP there must be an particle kill event or the life span.
A scene would also help.

Thank you.

Regards,
Kresimir Tkalcec