Correct prediction never in middle when autocorrect is turned on

This seems similar to this topic: https://support.swiftkey.com/hc/en-us/community/posts/115004506349-Left-or-right-prediction-correct-main-prediction-wrong However it seems inconsistent. I got really annoyed by this behavior so I tried around little: The correct prediction only seems to be thrown off in certain apps. I noticed it on duolingo for example. There, the correct prediction is always on the left side (sometimes right) and what I typed is in the middle. (Got the same issue on the search bar in Google Chrome App, but maybe there it's intended.) I then tried it in Evernote and there it worked fine, correct predictions are in the middle. Same for Whatsapp. Then tried turning off autocorrect altogether. Awkwardly that solves the problem on duolingo, correct predictions are in the middle then but obviously don't get autocorrected since the function is off. Maybe anyone else can confirm that or has a solution?