SAP Note 26087 - "Refresh" in Project Info. System struct/sched.

Symptom:

In Project Information System structure/schedule, the object status (tables JSTO, JEST) is not refreshed when you refresh projects.
This error only occurs if, when working in the information system, you change the status for an object in another mode in a parallel session.

Cause and prerequisites

When data is looked up with the logical database PSJ, the buffer for status data JSTO and JEST is not deleted.

Solution
The status buffer is deleted before the data is read again.

Additional key words

logical database PSJ