ACTOR: Error: Docker image build failed: NotFound: content digest sha256:59e2266...: not found
This happens even with minimal “Hello World” actors in different languages (Python, Rust, etc.), and using different base images such as python:3.11, python:3.10, or even full-size variants.
The image is clearly being built successfully (log shows Successfully built ...), and this error appears only when Apify tries to push the image to your internal Docker registry.