did u try one more turn?? and not outdated ,modular civ . . and i have the most up2date SVN . .
tried again and backwards again, cant move forward twice??
doesnt matter upon 2 moves up or right backwards they go . ..
Ah, solved, and rather predicted to a degree.
CULTURE, dude, CULTURE.
There WAS a reason I asked you why CULTURE looked so differently in my and your screenshots, despite it being the same save (even without me recalculating values).
Your troops were just being pushed by a half-turn switch of CULTURE OWNER of the plot they were on.
It's basically at 50/50, so each turn the plot was changing the owner, and the other civ was auto-pushing your units out of their borders.
It's beyond obvious after I started a WAR on Israel, thus eliminating the Closed Borders effect that did it previously.
See for yourself - just start a war and it WILL "fix" the issue.
Still kinda a glitch nonetheless, but a predictable and explainable one.