3827046 - Why do I get a popup 'travel rule triggered' but I can't select a violation reason from dropdown and can't continue my booking in Concur Legacy?

I am trying to do a booking that violates a rule and when the pop up appears, I am not able to select a reason from dropdown below:

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Travel > Travel Policy

Concur Travel all versions

I am doing a booking but a popup appears saying travel rule triggered and I can't continue my booking , KBA , CON-EXP-ADM-EML-RUL , Rules , Problem

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