RICH only compact files fail with `dd_web_display`

$ dd_web_display --export athena/compact/subsystem_views/drich_only.xml

Warning in <TGeoManager>: Changing system of units to ROOT units (cm, s, GeV).
DocumentHandler  FATAL +++ Error (TinyXML) parsing XML document:ip6/ip6_defs.xml [ip6/ip6_defs.xml]
DocumentHandler  FATAL +++ Error (TinyXML) XML parsing error:Failed to open file
DocumentHandler  FATAL +++ Document:ip6/ip6_defs.xml Location Line:0 Column:0
dd4hep:XML       ERROR ++ file:ip6/ip6_defs.xml error:Failed to open file
DocumentHandler  ERROR +++ Exception (TinyXML): parse(path):dd4hep:XML: ++ file:ip6/ip6_defs.xml error:Failed to open file

**************************************************** 
*  A runtime error has occured :                     
*    Document::root: Invalid handle!
dd4hep: Error interpreting XML nodes of type <include/>
dd4hep: Error interpreting XML nodes of type <define/>
dd4hep: while parsing athena/compact/subsystem_views/drich_only.xml
*  the program will have to be terminated - sorry.   
****************************************************