Warframe being "deleted" while in necramech during thermia fractures

[RoboticRaven]

While I was doing some thermia fractures today I decided to hop into my mech to see how it fares. I left my warframe, was playing wisp at the time, close to the thermia fracture in my wisp motes. When the thermia fracture did the nullfier bubble burb it effectively deleted my warframe and companion. When my mech died I was left in operator mode, with no warframe to return to and it was no where to be seen. Along with this my gear wheel was empty so I couldn't summon my mech again. I forgot to take a screenshot as it was pretty hectic. Tried it again in a different mission and the same thing happened.

[MezzoM5]

Same exact thing happened to me, but there was nothing in particular that caused my Warframe to disappear. I just left it alone to go move my Necramech in Iso vault, and when I tried to go back to it, I found out I couldn't. Tried to look for it, but it was gone, and then I died as operator, causing me to fail the mission.

Needless to say I'm done for tonight.

[Aegnj]

Had also the same thing just happen to me, i was doing solo iso vault (t1) and hopped into my nechramech during the second stage (the toxic survival thing).
I noticed my frames dissapearence early (i was playing vauban) because i set up a vortex (~100 seconds) prior to jumping into the mech and it dissapeared way too early than it shouldve.
I tried getting back into my warframe but it just said "invalid target" and later found out i couldnt use any gear either.
After my necramech got destroyed by another mech, i only had my operator left which, of course, died and resulted into a mission failure.

I think the cause of this bug was the death of the warframe while being in the operator mode/necramech (sometimes warframes arent invincible while in operator mode), which usually leads to the operator immedeantly getting back into the warframe and bleeding out, but in this case, because i was in the mech, no transference occured and my warframe just died (and the 5 revives with it).