Sensitivity label not showing all items in purview

Hi

I'm currently doing the following things.

In Power Automate I send an email, i set the Sensitivity email to encrypt the email.

This works perfect, i sent a couple of emails verified that they have the label and they are encrypted.

Now if I go to Purview to check for all files with the label only 1 out 5 emails shows up under the label.
I have triple verified that the labels are applied to the email. 

I then created a retention label, where i do a content query on Exchange mailboxes where i search for the sensitivity label using InformationProtectionLabelId:{labelguid}

I run a Simulation, same thing here only 1 email found out of the 5 in my mailbox.

Not sure why it's not picking this up. The retention label deletes the content after 24h but the items are not being picked up even if I clearly see they have the sensitivity label applied.

I'm checking the emails and i can see tag applied using PowerShell even checking email message details I can see the label applied: MSIP_Label_25257012-567b-4c40-b48b-69d2ed233264

Not sure why emails are not being picked up except one, all are sent the same way. They all get encrypted.