I have a single checkbox field that is returning a similar database error:
Warning: 2 entries in Community Builder comprofiler_field_values link back to fields of wrong fieldtype.
fieldvalueid=126 fieldtype=checkbox
fieldvalueid=127 fieldtype=checkbox
This one can be fixed in SQL using a tool like phpMyAdmin.
It's a checkbox I use for excluding people (like myself as the web developer, and those who don't want their profile visible) from user lists on the website. I use a filter in the Lists based on this field.
It's set to Checkbox (Single), but when I change it to Checkbox (Multiple) or Radio Buttons, I can see two options. But since I only want the one option - to check the box if I want to exclude the user from lists.
As I was writing this, I tested setting the field to Checkbox (Multiple) and only having the one option: "TRUE", "Do not list". This fixed the database check, but seems a little odd, since I really don't want "multiple" because it's a logical - either true (checked) or false (unchecked).
Seems I solved my own problem but was curious if this is still an unresolved issue in the database check process.
Thank you,
Ernie