Well don’t give up. The code I gave you was pulled directly from a published island of mine that has no HUD issues.
You might want to think of a canvas as a drawing board for placing widgets.
Also, unlike Apple’s iOS widget system where it was a huge pain to force individual elements to update, I have found zero issues with the UEFN widget system. But then I am mostly just placing text and boxes on the screen with values that update every second or so.
(Also, have you just tried updating the text to “” at that point?)