I'm not sure if a limitation with the engine, or a bug?
Does the issue occur in the editor or during gameplay? If it occurs during gameplay, please specify which movement system is being used (free movement or grid movement):
editor (Map editor)/ gameplay (both)
Briefly describe the issue you're experiencing:
When placing a tile that has a light source, after placing a few in a row, subsequent tiles lose their light source.

Are there any errors in the in-game debug console or external console window?
No errors
Provide the steps necessary to reproduce the issue:
- Create a tile and give it a light source.
- Place about 7 - 10 in a row until the light source seems to vanish from subsequent tiles
Provide a download link to the bare bones project (if applicable):
Can provide one if necessary, but should be producable in any project.