Header Panel Missing Chromosome-Scale Naviation Bar (IGV 2.17.2 + Java)

[FrostFlow13]

Hello! I just installed a fresh version of IGV 2.17.2 with Java 17 included, and I've run into an odd issue where the chromosome-scale navigation bar in the top panel appears to be missing. I don't see the issue listed anywhere in any open or recently closed Issues, and I can't find any relevant options in the "Preferences" menus or the other drop down menus, but maybe I've just missed it. To be more clear, I have attached images of two different IGV versions launched via the Start Menu in Windows 10 (it also occurs when launching IVG via the igv-launcher.bat file):

IGV 2.16.2

IGV 2.17.2

What's interesting to me is that it appears it recognizes the navigation bar SHOULD be there, given it can be hovered over, but left or right clicking on where it should be does nothing. I very much like the new chimeric reads feature with the mapping, but the lack of ability to quickly navigate between regions of the genome makes it a bit harder to use. Are there any suggestions or thoughts on how I may be able to get the bar to reappear?

[jrobinso]

This looks like a bug, probably affecting genomes with no 'cytobands' defined. I will see if it can be fixed by modifying the genome definition file, if not the only alternative is to wait for the next point release (2.17.3).

[FrostFlow13]

Understood - thank you for the quick response!

[jrobinso]

Can you confirm the genome assembly you are using? Is it our hosted c.alibcans genome, or something custom?

[FrostFlow13]

I can confirm that it is not the IGV-hosted C. albicans assembly. It is a new C. albicans genome assembly I have been working on.

[jrobinso]

OK, are you using a genome .json file, or just the raw fasta, to define the assembly?

[FrostFlow13]

It is a raw .fasta file being used to define the assembly, and it is the same .fasta and .fasta.fai files being loaded in both IGV versions.

[jrobinso]

Yes I was just looking for workarounds, with just a fasta there aren't any. With a genome "json" file you could add a no-op cytoband file that would probably fix this. Otherwise wait a few weeks for 2.7.3

[FrostFlow13]

I see, thank you for at least looking into it! I'll be looking forward to 12.7.3.