RadixUI DropdownMenus don't auto-close when their trigger is inside ReactFlow custom node, any guesses or ideas anyone?

[dsign-phil]

To illustrate, with 3 ReactFlow custom nodes containing each one (in-house) <Card> component which has a kebab-icon DropDownMenuTrigger, and having managed to open all 3 of those DropDownMenus:

Typically these DropDownMenus auto-close as soon as one clicks outside of them. Same on a page with ReactFlow, unless that-click-outside was on another such DropDownMenuTrigger. The previously opened DropDownMenu doesn't auto-close here, but on our other pages with these very same in-house <Card> components but without ReactFlow (and so, not within custom nodes), they do as a user would expect them to.

Anyone have any ideas? Any toggle or prop that might help?