SOLVED New UI not loading multiple configuration sections

[virtualdxs]

I installed FreeNAS at 11.2-RC2 and upgraded a week ago to 11.2-U3. Today, I changed the mapall group for an NFS share from a local group to an Active Directory group, and the UI immediately stopped working. The storage usage widget is missing from the dashboard, and the only way to load any pages is by going to /, loading whatever that is, then going to the page I want within a short period of time. After that period the sidebar buttons' text changes color but doesn't do anything else. Loading any URL in the address bar other than / just hangs. Even if I use the above trick to navigate, most pages' content doesn't load (just sits on a spinner). The kernel messages pane I had at the bottom of the screen no longer loads. dmesg output from ssh contains a lot of this:

ctl_datamove: tag 0x20dd02b9 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02ba on (1:3:0) aborted
ctl_datamove: tag 0x20dd02bb on (1:3:0) aborted
ctl_datamove: tag 0x20dd02bc on (1:3:0) aborted
ctl_datamove: tag 0x20dd02bd on (1:3:0) aborted
ctl_datamove: tag 0x20dd02be on (1:3:0) aborted
ctl_datamove: tag 0x20dd02bf on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c0 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c1 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c2 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c3 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c4 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c5 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c6 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c7 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c8 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02c9 on (1:3:0) aborted
ctl_datamove: tag 0x20dd02ca on (1:3:0) aborted
ctl_datamove: tag 0x20dd02cb on (1:3:0) aborted
ctl_datamove: tag 0x20dd02cc on (1:3:0) aborted
ctl_datamove: tag 0x1ed07cc on (0:3:0) aborted
ctl_datamove: tag 0x20dd02cd on (1:3:0) aborted
ctl_datamove: tag 0x1ed07cd on (0:3:0) aborted
ctl_datamove: tag 0x20dd02ce on (1:3:0) aborted
ctl_datamove: tag 0x20dd02cf on (1:3:0) aborted
ctl_datamove: tag 0x20dd02d0 on (1:3:0) aborted
ctl_datamove: tag 0x1ed07ce on (0:3:0) aborted

But it had that before this issue as well. It seems everything except the web interface is working. Any ideas what's going on? Unlikely to be boot media as it's a pair of mirrored 240GB SSDs.

Oh, and it seemed to be successful in generating a debug but I can't download it because it just hangs.

Edit: Can't load legacy gui either

 

[virtualdxs]

"Fixed" by restarting Django, we'll see if this pops up again.