Some weird entities observed after withname and/or filters applied


After some filtering I end up with lists where entries looks like this:

Note that this is ONE object hovered producing 3 popups which looks a bit weird by itself especially assuming they usually overlap.
I’m quite sure I’m doing something wrong (I have just a few hours experience with coda) but still don’t think that any user behavior could “legally” produce such result.
Also on mobile that values are shown as list of “unknown object”. I guess that is not something expected.
Here is a link to the discussion with the expanded description of the issue and attached the doc to reproduce it.
"Generate" additional list/calendar values basing on two columns - #4 by ArtemM .
Please let me know if I could expand anything or provide additional information.