Using the latest V10.0.1495 on Windows 11 Pro, I’ve found when printing (a lot of the time) the preview window says “cannot find document” in the centre and displays nothing of the email, yet the email is fully loaded in the body of the email prior to clicking print.
This is not an issue with V9.2.2157 for Windows on the same computers with any emails. Replicated this issue on 2 brand new Windows 11 Windows Pro installations with different Gmail IMAP accounts.
Removing the Gmail IMAP accounts and re-adding them makes no difference. Also uninstalling and reinstalling V10 makes no difference, so gone back to eM Client V9.2.2157 for Windows for now.