If you go onto someone’s favorites and try to see their bundles, you will get this error in the console:
Which is the same for both ‘Body Parts’ and ‘Avatar Animations’ bundles.
You can however preview your own favorite bundles:
See my favorite bundles (which you would expect to see the ones in the screenshot above) and you will notice it causes an error:
@R3dTuxedo — favorites > bundles > body parts