Hello @Peleg,
When you turned on recording did you select Local or Cloud?

If Cloud Recording was selected, then the recording file will be in the Zoom Portal under the original host's account. Even though you were made host during the meeting, the meeting is still associated to the user that scheduled and originated the meeting, so cloud recordings stay tied to them.
Please reach out to the original Host and ask them to check for the recording in their Zoom Portal.
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Thanks!