I'm happy to help with this investigation and curious to see what the root cause ends up being.

I also can't seem to find a thread in this forum which was opened by some other user reporting this similar issue with a (real world) Java application. I will see if I can locate it.

Thank you Quinn for this extensive guidance. I'm collecting some related data from some of my experiments and also going through some of this linked documentation and I'll respond in a day or two to each of these topics.

Thank you for your replies.