Can't view mails protected by IRM in the new Outlook

[Crefix]

I switched to the new Outlook app and whenever I try to preview an attachment by clicking on it, if the attachment is protected by IRM, I can't view it.

This forces me to revert to Outlook desktop client thus breaking the user experience.

Is this feature supported or is it a limitation of IRM that the new Outlook is not usable for those IRM protected mails?

@tommoser @msmbaldwin @aashishr @yangchen