The only thing I know of that would affect that would be what I described here: SW2017 Enhancement That Didn't Make the "What's New" Document . I assume that your drawing views hadn't been manually linked to the BOM's?
It sounds like your other post. We did not have to manually change to property in the view we added the new BOM table. The only time we needed to change this setting is if there were multiple views on a drawing but only one of them was used to create the BOM table. the other views would then need to changed to use a specific BOM table because one was not created for that specific view.
But we do not want the default to be the first BOM inserted. we have a BOM on every page. Sometimes 10+ pages with 10+ BOMs. 1 view per page with 1 BOM per page.
In the past this was no an issue. BOM went with the view that it was inserted from, And you had the option to change it to use a different BOM.
Why insert a new BOM table if you did not want to view you created it off of to use it? Dose not make sense to me.