ummmm figured why not learn edebug *now*. so I instrument that method, start the capture, tell edebug to go when it stops in that function, and the capture works. And now it works whether instrumented or not. Hey hum. A total mystery but at least it works.
Maybe native compilation has something to do with this? This is me grasping at straws, mind you. I'll update if/when this problem re-asserts itself. Thanks again, eric -- : Eric S Fraga via Emacs 28.0.50, Org release_9.4.6-598-g604bfd : Latest paper written in org: https://arxiv.org/abs/2106.05096