Let's check a couple of basic things first, please.

BIAB 2019 comes with a 32-bit version which loads by default, and a 64-bit version. I'm assuming you loaded the 32-bit version, but just check to be sure: go to Help, About and it will show the version type.

Next, did you install BIAB 2019 into the same place as 2018?



BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.