Image sizes wrong when exporting from lightroom

[AMWPhotography]

Some how my export image sizing was changed. Have no idea how. A few years ago my color space was changed. 

how can I fix my sizes of the images? In a quick way? 

[Rob_Cullen]

What Version of "Lightroom"?

If Lr-Classic: What are your settings for 'Resize' in the Export dialog? Post a screen-clip.

[Just Shoot Me]

Actually No matter what version of LR but I suspect it is LR Classic the Traditional version of LR that has been around since 2007. So I am moving your post over to that forum.

The changes that you are seeing are all User adjustable and selectable in the Export Dialog window. See below.

When you say the "Image Size" what do you mean exactly? In Pixel dimension or in File Size in Mega Bytes ( MB )?

And as far as Color Space I have highlighted (Red box) where that is User selectable.

[dj_paige]

What is wrong with the image sizes? Give example. Be specific.

[josephlavine]

Please provide a few more specifics to the issue(s).

warmly/j