Hi @Anonymous ,
Have you try to run the package in 32bit for a try?
I didn't have the Access environment, I did some online research for you.
Someone mentioned the below steps, you may have a try.
Add a new OLE db connection>new>Microsoft Jet OLE db provider>put the db name in the Database file name and the workgroup login/password in user name & password
then click "All" on the left and stick the workgroup path in "Jet OLEDB:System Database"
Also you may check the protection level of the package.
access-control-for-sensitive-data-in-packages
Regards,
Zoe
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