I removed all the files and the entire database to start afresh, the problem remains, in the sense that if I create a dropdown for the first time, everything works fine, if for any reason I delete and recreate the dropdown the filter does not work anymore.
I noticed that of course changes the fileid in the database, in fact if I manually change the fieldid putting one of the first dropdown created, it works, but the problem is that I do not know the fieldid of the old dropdown eliminite. Where do I take action to solve the problem?
Thank you.
Pasquale
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