pvesr status hanging after upgrade from 5.0 to 5.1

Upgraded to pve-manager/5.1-41/0b958203 (running kernel: 4.13.13-2-pve), and this is still an issue for me. Again, happy to do any debugging required to help assist with resolving this (fairly major) problem.
 
Having the same issue here running the latest pve and kernel

Code:
3369 root      20   0  537984 104572  10816 R 100.0  0.2  26:12.21 pvedaemon worke
 3370 root      20   0  537972 104552  10812 R 100.0  0.2  24:14.59 pvedaemon worke
 6186 root      20   0  305812  75700  13680 R 100.0  0.1  28:15.99 pvesr
 3368 root      20   0  538008 104736  10812 R  99.7  0.2  24:48.03 pvedaemon worke