Additional to the recommended hot fixes DL-45745.zip and DL-45493.zip were required to be installed due to the following reasons:
i) Some of the Hot fixes those are bundled of the recommended hot fix, didn't get installed. So PEGA suggested to install "DL-45745.zip".
ii) OOTB pxCreateDateTime property got corrupted mostly due to hot-fix "HFIX-7571 (Casting a DB2 zOS DATE coltype and writing values to DATE cols)" which was part of the first recommended hot fix. So PEGA suggested to install "DL-45493.zip".