Justice League still only started "five years ago" from "present day" unless that's also have been retconned.
Starfire and Roy Harper joined Dick's Titans during his college years according to New 52 Red Hood flashback. Which I think still apply because Dick formed the original Titans when he was a teenager, then they lost their memory, and then Dick formed the New Titans in college. The timeline fits.
So if Vic was in Titans, that Abnett issue where Dick met Vic in Justice League when they're both still in high school right after Vic joined Justice League should be retconned.
Then again, Vic only becomes Cyborg because of Mother Box. So if he did join Titans then he didn't join Justice League immediately.
Honestly, they need to do the zero issues again because I can't keep up.