Bootcamp disappears after creating third partition

I use my Mac mini as a secondary computer for home use and wanted to expand the partition space on the Windows side. I carved a third partition out of the Mac side to create 64GB to extend on the Windows side, but when I restarted the computer, the Windows partition doesn’t show up–even though Disk Utility shows the partition still exists and the files are still there.

Here is the partition dialogue window (the 160GB space is the Bootcamp space; the smaller slice of the pie is the 64GB third partition):

Is the Bootcamp partition recoverable in any way?