Failed to save! Unreal engine 4 error solving

Check out this video when your engine tells you, that it is not able to save your progress.

[RecklessJames]

This didn't do shit, especially when it doesn't mean much to those who don't have a 2nd instance running

[cgkrab]

Still happening in UE5....and this doesn't seem to fix it. No second instance running yet still unable to save.

[KageBlink]

Omfg I had no idea there was a second instance running that whole time. Thank you so much!!

[Zetrominator]

Jfc I had two instances of my project open how did I not... alrighty time for a break .

[techno]

I have the same message, but in my case the message comes if I want to save a "reference to an actor in a level" inside a BlueprintActor instead of inside LevelBlueprint.)

[Zeuzdelaluz]

For whoever this solution doesn't work. Try Changing the name of the actors in the scene that don't want to save. That fixed it for me especially if you are using "Kitbash Cargo"

[MilanKarakas]

Woah, what a simple solution: close another instance of UE 5.1. I forgot that I worked on some project two days ago, and now started new UE5.1. LOL Thanks! It is real help.

[aymansaid]

Been banging my head against the wall for 30 minutes you fixed it in 15 seconds lmao.

[Omar.bin.khattab]

not working this way, i just migrate my files to new project just From Content Right Click Main Folder and Select Migrate and select the content of new project, another thing some one told me to clear the temp folder for unreal and be aware to avoid clear un saved work just duplicate the modified files and move it to another project ...

[ryanpatton]

This seemed to fix it for everyone else, but unfortunately I didn't have a second instance in my task manager. Unfortunately lost a lot of edits to a blueprint because of it, but luckily I was smart enough to screenshot the BP before closing.

[Henry-zzwp]

That still happens with UE4.27. What a simple an importend video. Didn't notice any second instance. Thanks a lot!

[flaviocosta]

I only have 1 instance open. It didn't help

[gabrielepardi]

Thank you.. Problem is... who in the hell started the second instance? Really I was working on a map all the day and then... ue4 told me: failed to save...
Thought my Hd were corrupted. Glad I found your video: it was a really fast and simple fix.
A big Hug!

[thestellarelite]

I'll have to join the crowd who had no clue they had two instances open!! I'm mucking about with kitbash3D and other assets and migrating everything around got messy. I thought I was screwed thank youuuu for this! As someone else said time for a break indeed 😂

[epicdudepersonman]

OMG THANKS I DIDNT KNOW I HAD THAT RUNNING IN THE BACKGROUND

[OMAYigit]

First 14 seconds was my problem lol. Thank you for the help!

[MaxStudioCG]

wow meeting this in september 2023 :)) ty

[CompunctionTime]

It's funny, I closed 2 instances down and "then" clicked your video right after, all the sequencer errors fixed themselves after, thanks.

[sonofzues]

Thank you very much i was using Unreal in 2 Instances lol

[gamingK]

Haha easy fix yet we all had to search for this video.. xD Hope it helps everyone who find it in the future. :D Thanks!