I am not familiar with the AB display, but it does not seem to be too dissimilar to the 75/76. I presume that one pic is from before the FAF and the other after. Both show 99.9L (99.9L what? Miles? I expect so). Whether its in 'Tracking' or 'Course' would seem to be irrelevant. In pic 1 the ILS shows 267 degs at Victoria BC and in pic 2 298 degs at Edmonton Alberta. This is NOT a map shift - it has to be a software glitch of a fairly large proportion.. Also, there has been a dramatic veering of the wind - maybe there was, but I doubt it. In both cases the applied wind correction would appear to be approximately correct.
prober