mobile responsive grid in lightning is not all responsive

Questions
1

Above works great in page preview outside LEX.

Image https//d2r1vs3d9006apcloudfrontnet/s3_images/1728439/RackMultipart20180504-19004-9ngjm5-2018-05-04_10-27-16_inlinejpg1525444270490×1006 32.4 KB

Not so much as Skuid component or VF page in Lightning.

Image https//d2r1vs3d9006apcloudfrontnet/s3_images/1728440/RackMultipart20180504-54652-dnxw97-2018-05-04_10-28-35_inlinejpg1525444293490×1010 43.8 KB

2

Oddly enough, bypassing lightning pages and using VF override from classic fixes my issue.