See video
2016-10-29 I change status to resolved feels like it works
I can't reproduce this. Tried it with interface language Dutch and English and in both cases the label for P3217 appeared immediately after saving the statement. Could you specify which browser (including version) and OS you are using? And when this happens again, could you check the Javascript console for errors (and if any post them here). Maybe that way this can be reproduced. And does this only happen for P3217 or other properties as well?
Ok maybe I have activated some Javascript on my Wikidata profile that is the problem?!?!?
You are right I tested on page https://www.wikidata.org/wiki/Q10407190
both with Safari and Chrome and no problems
I will come back when I have been checking Javascript console
As I asked for P3217 when it was created I had this problem for some days but it has "been better" and I see it "translated" more often.... but now thought I found a cause of the error...