rekordbox non-typical waveform loading problem.

I've recently upgraded to rekordbox 5.2.3. Everything goes well except for the waveform. I've encounter typical waveform problems when I use 5.2.0, which can be adjusted by editing the grid. However, this is not a typical problem, and is causing me lots of problem using rekordbox.

All tracks are analyzed incorrectly in the same way: The first drum beat comes together with the 0.2 bar. (37.2, instead of 37.1 for instance).

In the 4 videos I uploaded, file "38.mp4" comes with the originally loaded track, the other 3 files is after I adjust the grid according to the first drum beat. However, as you can see, the waveform color is not showing correctly after the adjustment. (For instance, when drop comes, and the bar gets change in color in the bar 32.4, not 33.1).

(Link: https://drive.google.com/open?id=1rvh5H7_CUrzU4PHA9Dqi7jhonl0UgVu1）

Even more, this problem sometimes occurs and sometimes doesn't, which is causing me more problem when preparing the track.

I've tried the following while none of them helps:

1. reinstall rekordbox 5.2.3;

2. uninstall rekordbox 5.2.3 and use 5.2.0;

3. selecting "high speed" in Waveform Drawing Rate.

Thx for reading the problem, hope to hear back from you guys soon.