Using SP2010 and Cascading dropdowns v3.7.34 I seem to be getting duplicated values.
Image attached.
Its not a typo, when filtering in the list, it only displays the single value for each option.
I tried to recreate this, but were not able to get duplicates. Did you use a list with different field for “Level1”, “Level2” etc, or did you use a pipe-delimited list of values?
You didn’t see a red exclamation mark after the dropdown when you had duplicates? – that would indicate multiple whitespace characters in the string.
It was a list I used with single line columns.
The first drop down is a single line text and the second dropdown was using the default Title column in the list.
I didn’t see a red exclamation mark ❗️
Interestingly, each duplicate had different values in the 2nd cascade field.
Please don’t waste too much time on this, as its SP2010 and is working ok now.