Hello @Peter W
If the document shows no sensitivity label in Word for Mac, but Word on iPhone/iPad blocks printing specifically because of sensitivity, I wouldn't assume that a label was actually applied. Office for iOS has built-in sensitivity-label handling, and Microsoft notes that behavior can vary between Office platforms.
The important clue is that this also happens with a new document after you enable “Password to Open.” That suggests the issue may be related to how Word for iOS is interpreting the document's encryption/protection rather than a visible sensitivity label.
I would test the following:
- Create a completely new .docx with no password and try printing it from the iPhone/iPad.
- Add the password protection to the same document and test again.
- Check Home > Sensitivity in Word for iOS itself rather than relying only on what Word for Mac displays.
- Update Word from the App Store and test after signing out/in to the Office account.
- If an unprotected document prints but the identical password-protected document doesn't, that strongly points to an iOS Word protection/printing interaction rather than the printer itself.
Microsoft documents that printing can be restricted when Office considers a document protected by sensitivity/encryption policies, but I don't see documentation confirming that iOS 26.6 intentionally treats ordinary password-protected Word documents as sensitivity-labeled documents.
So if the above A/B test reproduces it consistently, I'd consider this potentially a Word for iOS issue/regression and report it through Word > profile/account > Help & Feedback, including the Word app version and iOS/iPadOS version.
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