How do I get my primer to not do this
Apologies if you already know these tips but it looks like maybe one of three things;
* It could be that you are spraying from a bit too far away, you generally want to be 20-25 cm away, if you've got good control you can even get a tad closer.
* The room might be too cold, temperatures under 10°C can start to become a problem for some paints.
* The paint isn't mixed well; ensure you shake it really thoroughly. It can be annoying, but I shake it extra long just to be on the safe side.
Everything is connected.