Scene freezing in single window when segmenting

I’m trying to segment a foot CT and I’m try to erase excess volume around the bone of interest. After about 5 minutes of this, my pointer freezes in the window I’m working in and no longer lets me erase and my pointer starts moving the scene around the window without me clicking. Then the eraser circle just disappears and I am no longer able to edit in that window anymore. I’ve tried restarting and updating my computer and I’ve downloaded the latest version of Slicer, but this keeps happening and it is making it impossible for me to finish my segmentation.