App Runner Service Logs to debug deployment error

Everything was working just before the error - (deployments from a push worked, build scripts worked). I also test the nextjs site before pushing for deployment using npm run build.

I made some updates to the code(basically added images), did my npm run build - it came out clean, then I committed and pushed. (nothing else was changed - build scripts are still the same).

the issue starts after "[AppRunner] Starting source code build" then I get "[AppRunner] Deployment failed. For details, see service logs."

So, I have no idea where the "service logs" are.... (I also looked in Cloudwatch- it just shows the same general error message)