Why does my prime tower look like this?

[Patronus 3]

My UM3 prime tower default position appears to be off the build area, so I decided to move it a bit closer to the middle. As soon as it became visible (in other words sliceable) I noticed this. What is it and how to I get rid of it? I'm on the latest Cura.

[nallath 1,124]

What is the value of the prime tower pruge volume setting?

[Patronus 3]

Strangely, when I made that configuration setting visible it was zero and the prime tower then changed to this:

 

 

As the prime tower volume setting goes up, the black becomes more blue. At 2 it looks like this:

 

[AbeFM 35]

At a stab it looks like you're getting both "circular" and "square" prime towers at the same time. I'd suggest turning on ALL the settings, then carefully turning them off one at a time (or thereabouts) to see if some setting can't be turned off while hidden.

 

If that works, post what did it, perhaps they can implement the logic on the backend.

[kmanstudios 1,120]

Just for the heck of it. Try to just move the object to print over a bit and see if it affects the slice as you see it. Basically wondering if there is some sort of artifact in your model.....

[Patronus 3]

Don't know what caused it but after I restarted Cura the squares went away and I haven't seen them since.