I play on an ipad 2.
After each PvP victory with the new update, I see the rewards screen fine. Then when the kingdom background is displayed while the game returns to the PvP menu, it crashes. Every time so far.
For the record, this used to happen before also, but not until I had completed 5 or so matches (I didn’t keep an exact count.) When it crashed before, I usually logged back in to discover that I had been attacked. It was slightly annoying, but I did get my 5 battles at a time in before I had to start over, so I was able to live with it.