ENGINES ARE NOT VISIBLE IN STAGE.

[kadirefe51]

Hello, for some reason I started to have this problem today, the problem is clear from the title, you will understand if you look at the SS.1.SS(Problem) 2.SS(MODS)   -All ss ligtshot links.

[jimmymcgoochie]

I'm going to guess that you're using Realism Overhaul because you've scaled the stock system up to real-life size. RO does disable the stock delta-V calculator because it doesn't work for RO, but it should leave the staging list alone as it's still needed.

According to the screenshot of your GameData folder, you seem to have installed or updated nearly all your mods today- if this is an existing save that's been working fine until today, try undoing the updates.

Screenshots alone probably won't enough to find the cause of this problem, for that we'll need the KSP log files: