although you lose new features, If you have problems now, don't hesitate to reload your older softwares; follow the links provided for downloads. PM for more help.
I have working v13, v18, v12, v15; Interestingly in these older backups, the compatibility tool shows WINDOWS 7 64bit in spec of Oculus. So when using the older client
software, you don't get the upgrade to windows 10 message that appears in Core 2.0+ . The third link provides most complete implementation. The software in these links
work. Computer savy folks, this isn't difficult and you will be switching between them all like butter soon. Fac3book still is inclusive of the Quest and Rift so with the
softwares still being install-able these fixes should work until your next update.