We started using D 11.1 to run our 32 bit apps. No issues. I started migrating our 64bit apps and I cannot open a session without an AV. No issues when we were using Delphi 11.0 We are using the latest DOA( 4.1.4) Created a simple form with just the TOracleSession and same error occurred. See attached image showing AV .information. Using 18C 64bit client produces AV as well on oraOCIEI18.dll

Please review and let me if you need any additional information.