different pileups between sorted.bam file and bigwig file

Question

[bioyas]

Hi,

I am using the following command from deeptools package to convert my sorted bam files to bigwig format to have smaller files that I can easily load into IGV.

bamCoverage --bam  Sample.sorted.bam -o  Sample.bw

I loaded both sorted.bam and bigwig file into IGV tool and I noticed that bigwig track doesn't show the pileups as they are in bam track.

Do you have any idea what I am doing anything wrong?

[ATpoint]

Details needed, such as a screenshot. We cannot see your screen or read minds.

[bioyas]

Hi, Here is two screenshots from random places. in each image the blue line is from bigwig file and below it is the sorted bam file.