Yes, and you aren’t the only team to experience this either.
We pull from the repository at the time of processing, not at the time of submission. Now that the volume of submissions has increased significantly, there’s a significant backlog of submissions, so unfortunately some submissions are getting delayed.
Giving an option for the commit hash or the branch name is a good idea. Changing the way submissions get pulled would be out of scope for this year, but we will certainly consider implementing it for next year. Currently, the workaround some teams are using is to put the code for different submissions in different repositories.
Best,
James