OneDrive - synchronisation problems

Has anyone else noticed problems with OneDrive since the recent windows update?

Previously, I have used it to keep important files on two PCs in sync (with an online backup). For the most part, it worked fairly well. But something has changed recently. Amongst the symptoms:
1) Files moved to a OneDrive folder totally disappearing.
2) OneDrive constantly saying 'processing changes'
3) OneDrive failing to keep files in sync.
4) OneDrive hover message stating downloading x.x of y.y kb at 0.0 KB/s - i.e. never completing
5) OneDrive arbitrarily deleting important files from my OneDrive folder
6) OneDrive seems to insist that I have an Attachments folder and a Documents folder. Then it decides to delete them itself.

I was going to live with its unreliability for a while, assuming it was a temporary glitch that would be fixed in the next release. But when it starts to delete important files of its own accord, I cannot rely on it.
Unless anyone has suffered similar problems and can offer a solution, I'm thinking of uninstalling it.
Actually, I think I read that it's now part of the OS - so cannot be uninstalled. I'll have to disable it somehow.

Would DropBox be a good replacement?

BorderReiver said:

Would DropBox be a good replacement?

Google Drive would be a good replacement.

A response from the Microsoft OneDrive team suggests that "we dot [sic] have this feature available to sync Password protected files on OneDrive for consumer account.

However, it has been recently introduced but requires an Office 365 subscription to use this feature, as it is design in collaboration with Office 365."

Having been synchronising password protected files for some years with OneDrive, I find it difficult to believe. I also find it difficult to believe that Microsoft would suddenly do something like this without some form of warning. If one purchases Office 2016, for example, that is a sizeable donation to Microsoft's coffers and they expect you to also purchase an Office 365 subscription just to keep OneDrive working?

Anyone know a good book on 'how to convert a lifelong Windows user to Apple?'