InvalidPathException when localizing resources for Tez job

When running a Hive on Tez job with an IGFS backend, I get an error:

InvalidPathException: Invalid path name Wrong path authority [expected=igfs@, actual=null]

The path is interpreted by the Yarn resource localizer as igfs:/apps/tez/tez.tar.gz. 

The path is configured in tez.lib.uris as /apps/tez/tez.tar.gz

 The defaultFS is configured as igfs://igfs@/

The system works for everything else.

exact error message logged:

localizer.ResourceLocalizationService: Failed to download resource {

{ igfs:/apps/tez/tez.tar.gz, 1536087125000, ARCHIVE, null }

,pending,[(container_1536139312517_0016_01_000001)],592502389438828,DOWNLOADING} 

Need help with this...