This issue has started for me after latest patch (issue 26, page 4). The game client immediately crashes on launch. Validating Tequila failed to resolve any problems.
Edit: Deleting the Tequila XML file failed to fix the issue as well as deleting and re-downloading Tequila. Instead I now get these errors.
Download error: hc-bin32/cg.dll
Was unable to download fileDownload error: hc-bin32/cggl.dll
Was unable to download fileDownload error: hc-bin32/cudart32_30_9.dll
Was unable to download fileDownload error: hc-bin32/physxcooking.dll
Was unable to download fileDownload error: hc-bin32/physxcore.dll
Was unable to download fileDownload error: hc-bin32/physxloader.dll
Was unable to download fileDownload error: hc-bin64/cg.dll
Was unable to download fileDownload error: hc-bin64/cggl.dll
Was unable to download fileDownload error: hc-bin64/cudart64_30_9.dll
Was unable to download fileDownload error: hc-bin64/physxcooking64.dll
Was unable to download fileDownload error: hc-bin64/physxcore64.dll
Was unable to download fileDownload error: hc-bin64/physxloader64.dll
Was unable to download file
I was working perfectly until the January 23th patch.