thanks for highlighting this issue. We'll take a look at it as soon as possible
Apart from the "default" report that is already in the system after the install, have you also tried modifying the report or creating a new one?
I have tried , creating new one report. But it's not working.
Therefore, i change docebo 4.01 "class.report_user.php" (doceboLms/admin/modules/report/class.report_user.php) with docebo last version "class.report_user.php"
Finally, This report is working with 4.01 version "class.report_user.php"
but docebo system don't writing report when export excel ,csv,html export.