We have reviewed teh session/error report tab several times over the years; here for example.
But recently, I’ve been finding errors tied to missing bMats (building materials) in settings that are often times ‘locked out’ or even hidden by parameter setting combinations. In cleaning and running maintenance on a file recently, I found over 100 error lines in the session report tied to such parameters in railings, doors, windows, and stairs. One solution was to add and reindex ‘dummy’ bMats to fill the gaps and get them back on track; but when they are buried or hidden, that doesn’t always work. Here is the solution for those instances:
WWA BIM 