Same problems running NVivo for Windows 12 Plus. I get the blue spinner even when trying to advance pages of pdf sources. Additionally, the Compact and Repair option in the help section is grayed out. What's up with that? I've got a big project file, but NVivo is supposed to be able to run up to 10,000 documents, which I have not exceeded, so it seems like something's up with the software.
What would be really nice is if someone from QSR would respond to the multiple requests in this thread for the alleged solution!