What Is The Bug?
The user provides a package ID in the prefab builder but once this is installed it has the version number appended
user provided info:

How it looks in prefab library inspector:

Expected Change
dont append or change the package ID away from user supplied information
Steps To Reproduce
- Start GameMaker
- Open or create a project
- Open prefab builder
- Add content
- Provide a package ID
- Package and install
- Select the installed package in Prefab Library
- See the issue in inspector
How reliably can you recreate this issue using your steps above?
Always
Which version(s) of GameMaker are you reporting this issue for?
2026.100 Betas
Which operating system(s) are you seeing the problem on?
No response
Are you running GameMaker from inside your Steam library?
None
Sample Package
What Is The Bug?
The user provides a package ID in the prefab builder but once this is installed it has the version number appended
user provided info:

How it looks in prefab library inspector:

Expected Change
dont append or change the package ID away from user supplied information
Steps To Reproduce
How reliably can you recreate this issue using your steps above?
Always
Which version(s) of GameMaker are you reporting this issue for?
2026.100 Betas
Which operating system(s) are you seeing the problem on?
No response
Are you running GameMaker from inside your Steam library?
None
Sample Package