Hi,
In my case I just needed to update the column secure_obj_token within the i2b2metadata.i2b2_secure table. If the Security_REQUIRED Parameter is not set to "Y" that column will get the value "EXP:PUBLIC". Updating it to "EXP:Studyname" did do the trick for me. With regards to the performance, I noticed that we save a lot of time not using docker container, running the DB and the GUI on seperate hosts, merging the column-files prior to the data-import (if there are more than one) and removing existing studies from the DB directly, before re-importing those using PDI/Kettle.
Kind regards,
Joe