Hi all; We're having trouble displaying BigWigFiles at UCSC and are getting error messages from UCSC like: http://main.g2.bx.psu.edu/display_application/238cdead8fb6f8fe/ucsc_bigwig/m... is not a chromosome id r-tree index file I see the same issue on Galaxy main, which can be replicated by trying to view the test.bigwig file from this history: http://main.g2.bx.psu.edu/u/Brad%20Chapman/h/imported-test-history-for-chapm... We noticed the problem after an upgrade to the latest galaxy-central on Friday, but I haven't been able to track down any changes which seem to be causing it. Other display types (BAM, regular wiggle) work fine. Does anyone know of recent changes to display applications which might be causing this? Any directions to dig into would be appreciated. Thanks much, Brad