Unable to attach one or more attachments failed to load

Hi

Last night i upgraded my Directors phones ( Iphone 13 Pro) and my Own phone (Iphone 13 Pro Max) to ios 16.2

Since then we are unable to forward emails with more than 5 attachments using APPLE MAIL.

We get a batch of reports daily always with 9 attachments and we have always forward it around. The more or less the same size too so its not a size issue.

The emails forward fine from the outlook app.

I have removed and added the email account and I have deleted the app and re installed it. Rebooted the device numerous times.

There is one other person whose phone i did not upgrade to ios16.2 , tested forwarding the exact same mail on his phone and it works perfectly.

is there anyone who knows how to solve this or even roll back IOS upgrade?

Thanks