The thought attachment icon for all (i.e. Microsoft and LibreOffice!) office document types (doc?, xl*, pp*, od?, rtf, etc) show incorrectly, either as belonging to a different associated application or, when this application is removed from the system, as a blank unassociated generic icon.
(As illustrated, the icon appears correctly in the Thought Attachment List.)
Rebuilding indexes does not resolve the issue, nor does repairing the associated application.
TheBrain 10.0.17.0 beta / 9.1.x / 188.8.131.52 / (PB) 6 || Win7