Notice in the image how the dex node connected to the node I'm hovering over is green (meaning I've picked it before) but the connected node says I haven't met the requirements.
Notice also in the second image, that when I try to pick the Dex node I've already added at my prior leveling that it prompts me to use my skill point, but it doesn't have the option to select the stat like a attribute node would have.
Notice in the third image I have the "Click to allocate" option as I should on a not-yet-selected node.
For whatever reason I seem unable to progress past this point on the tree at the moment.
I have tried closing and reopening the Passive skill tree page but that hasn't cleared it.
I have also tried quitting the game and restarting. It still will not allow me to move past this node on this particular branch.
The only thing I have not yet tried is to talk to the hooded one and respec the dex node I can't move past. I'll wait for a little in case there's a way for a dev/qa person to get a copy of my char data or whatever you can do to inspect my character's current state until either someone here posts to ask me to try it or a few days have passed.
Bug Report ID: #905952166