Since transitioning from Windows 7 to Windows 10 on my two PCs I have had the following issue with Windows Photo Gallery 2012:

All the pictures I select to e-mail (using Outlook 365) will not resize on a consistent basis. For instance, earlier today I selected five pictures to e-mail. Of those two were not resized. A bit later I selected another five pictures and all were resized.

Both PCs are i7s w/ 8 GB ram.

Any suggestions?

Thank you