@MichaelCropper That's awesome! I'm glad the usual computer pixie dust fairies dropped by and fixed the issue for you.
Poor Windows though... you initially laid the blame at their feet, but it seems more like this was a Google Chrome issue. I've noted a LOT of peculiarities with Google Chrome as of late and have started to migrate away for that reason. Reading a lot of forums on Reddit and other IT sources, this seems to be something that is pretty wide-spread.
In any case, it's working for you now... until Google changes something again. LOL
I hope you have a great weekend!