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Select attribute operator doesn't list attributes

udeshika_sewwanudeshika_sewwan Member Posts: 9 Contributor I
Hi team,

I have a process that has a Read MongoDB operator, JSON to Data operator and a Select Attributes operator. Read MongoDB and JSON to Data operators execute as usual. But when I try to filter attributes using the Select Attributes operator it doesn't list any attribute to select. But if I use a Retrieve data operator instead of Read MongoDB, the Select Attributes operator works as usual. What may be reasons for this issue?  
Thank you.

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