Trackster error? Try IGV instead!

Hello,
I am using BWA to map a yeast WGS on a custom genome that I uploaded in my history.
When I try to visualize the mapping using Trackster and picking the custome genome build for the indexing, I get the following error:

“Couldn’t open /cvmfs/data.galaxyproject.org/managed/len/ucsc/?.len”

The reference genome is cleaned up with NormalizeFasta according to the guidelines, and I don’t know how to explain this error myself…any hints?
Thanks!

Update in 2026! Try using IGV instead! Search our tutorials and this forum for how and please ask if you need extra help!