Sorry I'm going off on this tangent but............
I may not be attaching records the way you think I am so here's how I attach most of them.
I went back and found how I've explained how I created my symbols.
Here's an old link I posted here.
LINK
1. Create your symbol.
2. Delete it from your drawing screen.
3. Select it from your resource browser, right click, edit symbol.
4. While in the edit symbol mode DON'T SELECT the symbol. Just click on the screen so nothing is selected.
5. NOW ATTACH your record and set your defaults.
When you import the symbol it will now show the record when you click on it after it has been imported into your drawing.
NOTE: If you change the record AFTER you've inserted a symbol it only changes the record on that single symbol NOT all of them.