I have newly started using NGS pipeline. I have problem with cuffdiiff.why differential expression and regulation in locus is stuck in cuffdiff? Please somebody explain me details the problems and solutions.

Here is my command

cuffdiff -o cuffdiff_T1_vs_C \
  -L control,T1 \
  -u /mnt/f/Result/Obesity/cuffmerge_output/merged.gtf \
  /mnt/f/Result/Obesity/SRR30049723/sorted.SRR30049723.bam,/mnt/f/Result/Obesity/SRR30049724/sorted.SRR30049724.bam \
  /mnt/f/Result/Obesity/SRR30049717/sorted.SRR30049717.bam