I tried using dbca. There are no errors. It just hangs. I tried leaving it running for 4 hours. It is always stuck at 36% even after multiple tries.
Logs:
[progressPage.flowWorker] [ 2020-05-25 00:26:04.206 IST ] [CloneDBCreationStep.executeImpl:823] executing datapatch %ORACLE_HOME%\OPatch\datapatch.bat