Yes, but it happened with SP1 and the original release of VWA2018 as well as SP2.
I'd have to go back to VWA2017 for a stable release, and I doubt I'd get a refund from Service Select.
The problem doesn't happen all of the time – sometimes it takes an hour before the OIP behaves this way, sometimes longer, but today it was after only 15 minutes.
If I save the file the OIP recognises the object selected, but then I have to save constantly, for each selection.
A restart can help, but not for long.
A ridiculous waste of time.