ptracks Stopping Unexpectedly

[Sasa-fras]

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I'm having an issue where the particle tracks are stopping at some cylindrical barrier. As (hopefully) seen in the image attached; I am shooting a pencil electron beam through an aluminum cylinder, then liquid argon, and then through my target cylinder which is encased in aluminum as well. Originally this was all built in one cylinder however I wanted to better grasp the directions that the electrons are spreading out in so I thought I would encase my setup in more liquid argon instead of having a cylinder of it between the aluminum plate and target. I also encased the liquid argon in air to simulate the argon being in Styrofoam. The problem as seen is that the tracks stop as if they can't leave the radial distance matching the first aluminum plate which they contact.

Any ideas why the ptracks are stopping/being cutoff? Incase it matters, I am using union geometry to combine all of my pieces, although I did also try envelope it didn't fix it. Also the volumes I'm providing ausgab are totally wrong for all voxels except my target material since there's like a thousand regions and I just provided a single number making it assume its that volume for all voxels. I assume that's not the issue since I believe that's just for dosage calculations not track scoring.

[Sasa-fras]

Nevermind, the issue is of a completely different nature than what I first thought. I'm just going to create a new discussion with the correct issue.