Blazor web app hangs on RclContext.CreateNode (sudden onset) about rclnet HOT 1 CLOSED

UPDATE: I still can't explain how it started happening, but I may have stopped (most of) it. I reinstalled my Humble but that still didn't fix it; simple commands like ros2 run demo_nodes_cpp talker and ros2 topic list were still hanging. I discovered that running ros2 run demo_nodes_cpp talker --ros-args --log-level debug DID work, as did normal ros2 run demo_nodes_cpp talker afterward in the same command window, but ros2 topic list still hung. I found this and on a whim, I entered set RMW_IMPLEMENTATION=rmw_cyclonedds_cpp and then set RMW_IMPLEMENTATION=rmw_fastrtps_cpp, and amazingly, I could run the talker (and listener) normally every time in subsequent command sessions. Better, once I adjusted my launchSettings.json environmentVariables for the new installation paths, my Blazor web app ran fine again!

Only thing is, I still can't execute something like ros2 topic list without hanging. Oh well, different issue?...

from rclnet.