Some tables have a "Fix" option under "Styles" when you right click on them. Keyboard shortcut "Shift-U". Not sure what makes some tables have them vs others, but it seems to work for the most part.
Using the "Fix" option does fix the physical location, but what it also does is excludes the individual table that you have fixed from the "Apply Style" command.
Unfortunately, I had to update the table styles and then relocate each and every table where the default location didn't work.
Check the box "Exclude from Apply Style" on the wire table decoration in the styleset.
It should place the box in the styled location initially but if moved, it will not snap it back. The contents of the table will update with the "Update Border" command.