Sometime source template (usually infoboxes) contains outdated parameters and target wiki has updated templates. In this case, it will show warnings. VE also shows such warnings on the top of page. CX should do either same or in better manner.
Description
Description
Related Objects
Related Objects
Event Timeline
Comment Actions
While trying to reproduce this in CX2, with the info about the article which can be seen from the screenshot, I found templates missing.
First, I thought source article was en:Gorakhpur. So, I've checked that one. With en->gu pair, I've found infobox on the top missing in source article on both CX1 and CX2.
Then, I realized this was reported for en:Gorakhpur_district, so I've checked that one with en->es language pair on CX1 and CX2, and infobox template is again missing from source page.