Quick answer: The track classification may have detected more than one harmony track, leading to a false analysis result.
Track classification and segmentation of chord regionsLiquid Notes comes with a sophisticated analysis engine for classification of tracks and segmentation of chord regions. The best results are achieved with a clean MIDI arrangement, i.e. when a harmony track is clearly distinguishable from the other information delivered in the project (MIDI file).
If more than one harmony track has been detected, this may lead to chord regions being too narrow or too wide. You can check the result of the track classification on page 2 of the automatic routing wizard when opening a project. There, choose the harmony track which contains the most consistent succession of chords.
You can also try to fine-tune the attributes and to experiment a little with it.
Also note your problem may be related to having combined identical chords or experiencing a wrong harmony analysis. See related articles for further information on these issues.
Merge identical chords to eliminate short chords
Harmony analysis is delivering wrong results