Problems with Export as.

[edmorse@currently.com]

I'm trying to export a project with 2 layers as a png or jpg and it looks like only one of the layers( or even part of one layer)  is being exported.  I tried to "merge down" the layers and then use the rectangle selection tool to select the entire image.  no workie.  would appreciate any help/advice.  GIMP 2.10.32 on windows 10 64 bit.  total newbie.  please be gentle.