Hello beast users
I am a beginner at beast, I am doing coalescent Bayesian skyline plot analysis for about 300 human mtDNA sequences. I selected the coalescent Bayesian skyline and bPopSizes=5.
After visualizing in Tracer v1.7.2, I found two issues:
First, the two HPD lines are merged with median line whin 5000 years.
Second, the time in x-axis is usually 4-50,000 years before present in mtDNA studies, but in my plot is just 25,000 years.
The plot is attached.

It would be very appreciated that if you can help me.
All the best
Panxin