Random Text Not Showing in Widget(UE5.4)

I tried replacing the Canvas Panel in WBP_EventDisplay (the one containing the Text Block) with a Size Box, but it still didn’t display.
Even when using just the Text Block on its own, the result was the same.

I followed the method shown in the screenshot to check whether the widget is actually being created, and it seems to be created correctly.
Just in case, I also checked WBP_MessageLog (the one with the Vertical Box), and it also appears to be created properly.

Is there anything else I should check?
I’m not sure where the issue is…