PS camera raw edit to .dng not showing after upload

I've been paying for Lightroom with photo storage but still using desktop photoshop CS 2018 with camera raw 10.2 to edit photos sometimes.

I edited a bunch of .DNG files in photoshop camera raw on my PC and the edits (masked adjustments, etc) show up on the DNGs when viewed in Windows, but when I uploaded the edited .DNG files to http://lightroom.adobe.com the straight-out-of-camera photo shows up, no edits. 

I could save the edit as a JPG but if I'm paying for 100gb of photo storage I'd rather upload the lossless version! 

Can anyone tell me what I'm doing wrong?

See attached screenshots for comparison - note the foreground buildings in sunset photos are brightened in edited photos, and still dark/unedited on screenshot of lightroom uploads.

Adobe Camera Raw 10.2 on Photoshop CC 2018 on windows 10 - edited .DNG files show up fine locally.
web-uploaded .DNGs to http://lightroom.adobe.com - no edits show up.