Track analising stoped working

I initially imported my music and analysed all my tracks and it worked fine but now when I try to import more tracks the pop up comes up and I set the BPM range for analysing click ok but they stay at 0% and the worst part of it is rekordbox is using 98% of the processor resources like it is analysing the tracks but they stay at 0%.

I have tried resetting the preferences back to default and still no luck. What am I missing?