Your welcome :)
Was the asset always CC-BY-SA ?
For games, Creative Commons Attribution v4.0 International is better.
I used to think that the Creative Commons Attribution_ShareAlike v4.0 International is unusable for games, when reading answers on stackoverflow (such as Is it legal to use Creative Commons art in a commercial game? - Game Development Stack Exchange or creative commons - What do I need to share if I include CC-BY-SA artwork in my software? - Open Source Stack Exchange).
I understood that the game would have to be released under CC BY-SA 4.0, which never happens, even if the game was open-source, the license would be a developing license (MIT or another).
But I just read this answer Frequently Asked Questions - Creative Commons (If CC SA-licensed content is included in a database, does the entire database have to be licensed under an SA license?) and it seems it might not be the case.
CC licenses do not require the collection or the compilation itself to be made available under an SA license, even though each individual work is still licensed individually under an SA license and if they were modified by the distributor the modified photo would need to be licensed under the same terms.
It's really weird that the principal art license is so badly designed and a simple question, for the main use case, is not properly answered in the FAQ, but it does seem to be the case.
I guess one of the CC license is nice, I always avoid the NonCommercial license, of course.
When I'm searching for assets, I usually search for one of these license, or public domain / CC0.