I can't load some saves! (PTS 13.5)

I have a backup about four hours ago that works.
I then made a backup when I left that map from Aegis to Urska. (same mission) It doesn't load anymore.
And there is a save two missions later in Chernokamensk that also cannot be loaded.
In fact, as the Top Secret quest trailer leaves the Aegis map, the save cannot be loaded.
Completed quests:
Top secret
Lifeline
Ongoing mission:
Sawmill Blues

I know it doesn’t fit, but I have another problem that is also about missions and maybe there’s a connection.
With update 13.3, a mission that I have already completed is back: "Carrier Rocket Carrier"
Of course, the associated trailer is no longer on the Aegis map. I have already delivered the assembled rocket to Cosmodrom. Mission list.

last edited by A Former User

@Jóska-Pista Hello!
Please send us backup save files you have problem with.

It works. Thanks!
(PTS 13.6)