OS: Windows 10 - 64bit
When tabbing through the Contact sheet dialog starting in field "Width" using the "Tab" key, you find that the the field "Height" is not in the right tab order.
Effect: Irritating user interface
To reproduce:
1. In XnView browser select one or several images
2. Select Tools » Create Contact sheet...
3. In "Create contact sheet" dialog right click into field "Width" to put input focus to that field.
4. Press Tab key twice
Actual behaviour (bug): Input focus is on field "DPI". Field "Height" is missed out. Tab order is wrong.

Expected behaviour: Input focus is on field "Height". Correct tab order.