Describe the bug
When grouping 2 windows the top one overlaps the bottom one, not allowing to change the encounter
Screenshot with row area border:

Screnshot with window area border:

Screnshot with both borders

Error Log
No lua errors

Versions (please complete the following information):

• WoW: Retail
• Addon: 1.3

Additional context
I have tried disabling all addons but details and this one and I'm getting the same result