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Resource leveling and "start as late as possible".

I'm having an issue with a resource-leveled project where an activity with a lot of float needs to start as late as possible. When I change that activity to start as late as possible, all the activities after it shift to a later date, as if the float between them is being held as a hard restraint. I want to get rid of the float and keep this part of the schedule tight.

Also, I don't know if this is related, but before I tried to "as late as possible" change to the one activity, I tried to highlight the critical path and only the last batch of activities turned red, so if all the activities that directly preceded them are somehow not critical. (I'm well familiar with CPM scheduling, so this is not any misunderstanding of critical path on my path. It seems that resource leveling has somehow disable the concept of critical path.)

Thank you in advance for your help,
Kseniya
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  • Gantter only highlights critical tasks (tasks delaying which can delay the project). This also means that tasks which can be delayed even a little bit are not highlighted (but they still may be on the critical path).

    As for the first part of the question we need at least a simple illustration. Please attach a screenshot with a description or email to v.mazepa@gantter.com to keep the discussion private.
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  • I just shared the schedule file with you via Google Drive and put a description of the situation in the sharing invitation email.

    The critical path question doesn't matter to me too much at the moment, but critical path in CPM scheduling is defined as the set of activities none of which can be delayed without affecting project duration. So, that's equivalent to your definition of "critical tasks". I'm pretty certain the highlighting is not behaving correctly in a resource-loaded schedule -- but, as I said, that's not my primary concern at the moment.

    Thanks for looking into this.
    Kseniya
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