Error while trying to import Steam games.

[Kevinsurrection]

Hi! I'm having an issue while trying to import a couple of Steam games. They were originally showing up under Windows. I fixed them, but 2 games don't want to download to Launchbox. I get an error that says: "Object reference not set to an instance of an object." I have not changed any settings, file paths, folder names etc. All of my other Steam games go to the same location. I don't know why this error pops up. I'm not doing anything different when installing these Steam games compared to the other ones. Has anyone else had this problem? Any help would be greatly appreciated. Thank you in advance!  

[Suhrvivor]

I'm getting an error and crash when I click the download media for a steam game, they might be related. My guess is that Steam recently changed their server side api and it doesn't work properly with LaunchBox now.

Error:
 

Object reference not set to an instance of an object.

App:     LaunchBox
Version: 13.25-beta-2
Theme:   Default
Type:    System.NullReferenceException
Site:    System.String GetTrailerVideoUrl(Unbroken.LaunchBox.Windows.SteamGame)
Source:  Unbroken.LaunchBox.Windows

   at Unbroken.LaunchBox.Windows.SteamGame.GetTrailerVideoUrl(SteamGame game)
   at Unbroken.LaunchBox.Windows.Desktop.ViewModels.DownloadImagesViewModel.ReflectControllablePredicate()
   at Unbroken.LaunchBox.Windows.Desktop.ViewModels.DownloadImagesViewModel.<>c.AdaptExtendedProvider(Action action)
   at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass13_1`1.TerminateEfficientWatcherEvent()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

Recent Log:

   3:20:10 AM Exception

 

[macmahoun]

Exact the same problem on my computer since today.

[AstroBob]

Hi Folks, 

Thanks for reporting this and apologies for the issues here. We’ve identified a known issue where LaunchBox can crash when trying to download videos from Steam. We believe this is caused by a change to Steam's backend that we use to pull video media, and manifests in a few different situations (like editing metadata or using the import wizard).

We’re actively working on a fix, and we’ll post updates on our known issue report here:
🔗 https://feedback.launchbox.gg/p/launchbox-error-when-attempting-to-download-video-media-from-steam

In the meantime, you’ll find a list of steps in that post to help you avoid the crash. If you upvote that post, you'll automatically get updates once we have confirmed a fix.

Thanks for bearing with us while we get this sorted.

[Kevinsurrection]

Thanks AstroBob. I really appreciate y'all working to get this fixed and taken care of. I hope everyone has a happy thanksgiving! 

[JamesAndersonJr]

I first noticed this error while trying to import "Sonic Rumble". I acquired that game on its launch date. So, this has been present in some form at least since November 5, 2025. #FWIW

[skizzosjt]

On 11/27/2025 at 2:51 AM, AstroBob said:

Hi Folks, 

Thanks for reporting this and apologies for the issues here. We’ve identified a known issue where LaunchBox can crash when trying to download videos from Steam. We believe this is caused by a change to Steam's backend that we use to pull video media, and manifests in a few different situations (like editing metadata or using the import wizard).

We’re actively working on a fix, and we’ll post updates on our known issue report here:
🔗 https://feedback.launchbox.gg/p/launchbox-error-when-attempting-to-download-video-media-from-steam

In the meantime, you’ll find a list of steps in that post to help you avoid the crash. If you upvote that post, you'll automatically get updates once we have confirmed a fix.

Thanks for bearing with us while we get this sorted.

 

It was a soft crash, only error message. Now it is a hard crash, closing of the program. Now we cannot download any Steam game's trailers. Prior to this escalation it was only more recent games or more specifically, games that recently added trailers. 

 

[skizzosjt]

Been using these directions as a workaround for the meantime

https://steamcommunity.com/discussions/forum/1/597414541036361545/