hi, i believe this is a bug, i will put an issue in if so.
when i do an export of extensions from bulk handler 13.0.14.4 (FreePBX 14.0.1.1) i see in the export the following duplicate colums
Column - Name
ay - mediaencryptionoptimistic
bq - mediaencryptionoptimistic’
I think bq is a bug and the culumn has no data
let me know what you think