I've found a workaround for the barnacle problem I've been having. For those that care, if you go into noclip mode then clip through a wall while looking at them, it seems to fix the problem for the remainder of the demo. This does add an extra step and may make transitions between load zones even less smooth, but it does seem to be a solution for now.
I'm going to try and get two more Freeman's Mind episodes out this month to make up for the delay on the last one. Since there's lagtime between when I'm done and when it actually gets uploaded, I can't promise anything, but that's my goal.