Okay, who took my SOAN? (Wolves of Steel)

[Laconic]

Giving SH5 another go with Wolves of Steel (so, may be a TDW UI issue)

After attempting some RAOBF practice in the tutorials, the game crashed out with my SOAN open; when I booted the game back up and reloaded, I got a "Camera out of sector" black-screen error. Simply going to to the external cam and then back to the sub fixed it, but ever since then, my SOAN has vanished! I can't find it anywhere. Yes, charts are enabled. I've triple checked the charts settings to make sure I'm not missing the option to toggle the SOAN. I don't see an option to enable on the Nav map.

Am I missing something easy? Is it a toggle key or something I hit by mistake? My loopy theory is that when my game crashed and I restarted the tutorial mission my SOAN got "lost" in the "other" camera sector, and it's now sitting on my Bizarro-counterpart's ghost-desk. Any way to fix this?