I don't think this is a bug specifically with the PBB, but I can reproduce it using PBB. I created a simple .docx file with six references to Baruch: Bar 3:33 through Bar 3:38. I import the file in PBB and see that:
It looks like the double entry in Bar 3:34 creates an "off by one" error in the later passages.
I am using Logos Bible Software 4.5b SR-1 (4.52.0.2194). It seems to do the same thing for any Bible with 38 verses in Baruch (e.g. NABRE, NJB, D-R).