Ml-agents: Bug with --lesson command line argument

[scotthovestadt]

When trying to resume from a previous lesson, providing the --lesson command line argument currently does not jump you straight into that lesson. Instead, the first lesson is started. When completed, the lesson counter is incremented from the value provided by --lesson and you jump to that lesson.

For example, I provide --lesson=3. I expect to start at the 4th lesson (0, 1, 2, 3). Instead, I start at the 1st lesson (0). When I complete that, the lesson counter is incremented (3+1) and I proceed to the 5th lesson (0, 1, 2, 3, 4).

I think I see the area in the code it can be fixed and I would be willing to explore that and file a PR unless you already have a fix coming down the pipeline.

[eshvk]

Hey @scotthovestadt! we appreciate the bug notif and thank you for offering to submit a PR. @dericp is looking into Curriculum Learning and would be able to better answer reg. the PR.

[pderichai]

Hi @scotthovestadt, I've been reworking this section of the code. I'll make sure to unit test this and fix the bug.

[pderichai]

@scotthovestadt I believe https://github.com/Unity-Technologies/ml-agents/pull/1043 fixes this bug. It could be great if you could try it on your end!

[lock[bot]]

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