Twice of Github "checkout" action seems to reflect older version

Question

I'm trying to perform following tasks, successively in my GitHub Actions workflow:

1. Downloading files using curl

2. Pushing the downloaded files

3. Syncing with an S3 bucket

While the workflow seems to work, it reflects an older version of the files. You can find my YAML file here.

The specific job causing the problem is available here. You can see the diff for two commits of the job here.

It's evident that the S3 bucket reflects the older commit (7b31dc4) rather than the newer one (dd4e5fd).

I'd appreciate any help in identifying if there's something I've overlooked. Thanks!