Planification problem - Predecessor End to Start not respected

Hi team projeqtor;

We need your help because we encountered a problem with planification.

On a project that use predecessor chaining rule, we have many task that are planified to start before predecessor ending.
All task concerned are test session plannified on planningMode : as Soon as possible (9)
there is only one predecessor by task (testsession)

Planning of both task


Detail of predecessor test session (with end date on red)


Detail on successor test session with contraint date


Database View of Planning Element



Do you have any ideas to explain this case, a solution so that this constraint is respected whatever the other constraints that apply

Thanks for your help

Of course, at least 20 time since problem was discovered

Planning is recalculated each day




Same behaviour

Thanks

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