Time limits on missions

[Falcrack]

Are there any missions at all which actually have time limits? It seems like the ability to assign time limits is there, but none of the missions I have seen actually do have assigned limits.

[Techedge]

I'm pretty sure I've seen some "Construction wares required" missions with time limits (usually around 3h, maybe less). But I've never accepted those missions because of the… time limit!
So I' can't actually confirm if those work the way it was intended or not.

[LennStar]

There are for gathering stuff for a factory. But that is the only one I have seen.

[adeine]

As far as I can tell at least some missions do have time limits (even when not shown). They're just incredibly generous.

[radcapricorn]

Just had two missions expire on me. One was a satellite repair (apparently satellite got destroyed). Another was searching for a ship. I can't recall if it had time limit specified or not, but anyway I got distracted, and after a while mission failed with something like "failed to locate ship in time".

But, at the moment there also seems to be an issue with guild missions just... disappearing. Not failing, not completing, just one second you're on a mission, the other it's poof, without a trace (except for the acceptance message in the log).