I'm running 2019 SP3 and 2018.

In 2019, if I have an assembly with more that one config, and I add a Top Level Only BOM showing both configs, the quantity column labels do not come in correctly.  In the attached image, they should be "Default/QTY" and "jklpio/QTY".

I tried adding a configuration to the assembly.  Nope.  Immediately after adding the config, the quantity column headers disappeared altogether.

Works just fine in 2018.

Seems like a pretty awful bug to be in SP3 of anything...  Hoping somehow I have a corrupt template?