Hi,
if there are two variable with the same name but of different type, the row filter correctly suggests the one of the matching type but then errors out still selecting the wrong which comes first in the list of variables.
Can't evaluate variable "currentColumnName" as xstring expression, it is a STRINGARRAY (""currentColumnName" (STRINGARRAY: [Dimensions])"


The window displaying the error is also too small. A test workflow follows soon.
PS: Here is the test workflow:
Best
Mike
Hello @mwiegand,
Thanks for the report. I went ahead and downloaded the attached wf and tried to reproduce the bug and I found that there is some discrepencies between MUI and classic.
I couldn’t find the duplicated variable on MUI as shown below:

But when I switched to classic UI, it did show up:
I believe in the backend, its actually replaced (which is the case when you switch to MUI) and as such it uses the StringList type rather than the String which is why it causes the row filter to error out.
I can make a ticket on this detailing the discrepancy between MUI and classic UI.
TL
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Thanks Thor, I’d appreciate that a lot 
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Here is the Ticket number: AP-23935
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