I’m running Win7, installed about a month or so ago and LO 4.2.04. No 3rd party clipboard manager.
This is a random failure which I have not been able to cause or have a solution for except for re-copying into the clipboard and re-pasting. A different number of tries are needed to get it to work sometimes. Other times, it works just fine. At one point, I was pasting into Notepad and then copying and pasting into Calc. But that was not the solution because it is a random failure and so it sometimes seems to work.
If there is something I can provide you; a dump of some sort, I’ll be happy to do that.