BarrelOwl
Can you please elaborate?
Which exactly is the anomaly you see with KAL672 and CCA970 at that time?
At 16.55, KAL672 previously heading 054, turns to an apparent heading of 234 for a full 10 mins (until 17.05). It then Reverts to a heading of 041 before racing across the page (presumably in some sort of data catch-up). At all points in between, the data reports its heading as 234, which, if FA24 is to be believed, is data coming from the ADS-B transponder, itself reflecting the GPS coordinates of the aircraft.
CCA970 "appears" to do something similar for approx 2 mins at 17.01
Presumably this is corrupt/misinterpreted data, but perhaps goes to show just how (in)accurate FR24 is. Perhaps something else is going on - your guess is as good as mine, what that might be.