InDesign 15.0.2, running Catalina 10.15.4

I can easily add/remove nodes to a text frame but I have tremendous difficulty trying to move a node with the direct selection cursor. When I click and drag the node, the entire frame moves, indicating the node never got selected. A node seems to only manage to get selected about 10% of the time. I am not doing anything special for that to happen. It randomly works and 90% of the time it doesn't. Very frustrating.