Dropbox/Boxifier Integration - New Question

This is a technical question based on research I've been doing related to the recent issue with Boxifier no longer working with the latest version of Dropbox, and an inability to get a response from Boxifier support.

In my research I've come across information that Dropbox has, with version 243.4.6956, moved from a proprietary sync platform to Microsoft-based API that leverages their OneDrive sync engine. So my first question is whether that is true.  If it is true, my experience with OneDrive is that it is not possible to sync content from a NAS, or in my case WD MyCloudHome, using a mapped network drive.  OneDrive will only sync content that is stored directly on the hard drive of the laptop itself, and does not support mapped drives (IE Z:/MyCloudHome/MyPictures).

Previous to purchasing Dropbox and Boxifier, I had "tricked" OneDrive into syncing files from my drive mapped to MyCloudHome by using MKLink symbolic links to directories on the MyCloudHome.  However, I discovered that after those directories grew to over about 100GB those symbolic links began to fail sporadically, so I had no idea which files were synced to OneDrive cloud, and which were not.  After doing research on potential solutions I reached out to Dropbox and was told that the combination of Dropbox and Boxifier would meet my requirements.  After testing and confirming that did work, I purchased Dropbox and a "lifetime" Boxifier license about 6 months ago.  Unfortunately, "lifetime" appears to be about 6 months for Boxifier and I fear I may have thrown $350 out the window as it is probably not possible for Boxifier to continue to operate with Dropbox if indeed Dropbox is now running on the OneDrive sync engine.

So, my questions are whether Dropbox is now on the OneDrive platform, and based on that answer what my options are to continue to sync my content from MyCloudHome to Dropbox going forward.  I appreciate official Dropbox guidance on this matter, as well as any advice other users in similar situations might have.

Thank you,

Dave