Hi, now scrolling down the bug report I'd like to add another remark:
insighttoolkit4 is (currently) only available on i386 and amd64 [1], and the insighttoolkit3 will be phased out sooner or later (no longer supported by upstream). Since [1] will not be resolved anytime soon all, packages that depend on insighttoolkit* will have to drop all non-intel architectures. Best, Gert [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=724711