Interestingly, I just found out that the activities not displayed are visible on a PDF printout and in a CSV export.
Hello,
Which version of ProjeQtOr are you using ?
Do you have any error in the ProjeQtOr log or in the console log of your browser ?
What profile are you using when it works fine, and which one when it doesn't ?
Sorry for the few information. I'm using version 11.2.3. No error within log file or browser console. Both profiles are project leader how should see the same projects.
Interestingly, I just found out that the activities not displayed are visible on a PDF printout and in a CSV export.
Found a solution: resetting selected columns to default solved the problem