iOS 18.5 Mail app stuck on loading screen when forwarding or replying to emails with images in Microsoft 365 accounts

Hello. Ever since iOS 18.5 has come out those users in my environment are complaining that when they forward or reply to an email, it is stuck on the compose screen showing "LOADING" for a very long time. This seems to only be happening with emails that have images in it. The email accounts in question in their mail app are Microsoft 365. Is anyone else seeing this? Our users who have not yet updated to iOS 18.5 do not seem to be complaining about this issue and if I open and forward the same email on their devices, it loads right away whereas those on 18.5 are sitting on the loading screen.


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Posted on May 22, 2025 6:48 AM

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iOS 18.5 Mail app stuck on loading screen when forwarding or replying to emails with images in Microsoft 365 accounts

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