3202991 - Error: "4EESY499 "The (un)installation queue" "is empty!" for add-on MDG_FND during BW/4HANA conversion

During the conversion of a system to BW/4HANA, the following error occurs during the phase PREP_EXTENSION/UNINSTALL_PACKAGES_CHECK

2 ETN334XImport phase '"CHECK_SWCV"' ("10.05.2022", "11:33:03")
A3 ETN_PROCESS 080 Perform own checks and actions of Add-On "DSIM"
A4 ETN_PROCESS 096 The Add-On own plugin class "/DDF/CL_OCS_DSIM_PLUGIN" was successfully instantiated
A4 ETN_PROCESS 097 The Add-On specific action (plugin method "CHECK_PRECONDITIONS") finished without errors
A3 ETN_PROCESS 080 Perform own checks and actions of Add-On "MDG_FND"
A4 ETN_PROCESS 096 The Add-On own plugin class "CL_MDG_FND_UNINSTALL" was successfully instantiated
A4 ETN_PROCESS 090 Messages of the Add-On specific action (plugin method "CHECK_PRECONDITIONS"):
4EESY499 "The (un)installation queue" "is empty!" " " " "
4 ETN085 " " " " " " " "
A2EETN_PROCESS 054 The OCS import process is aborted in phase "CHECK_SWCV".
2EETN312 Abort the import due to an error situation ("10.05.2022", "11:33:03")
A2EETN_PROCESS 054 The OCS import process is aborted in phase "CHECK_SWCV".
1 ETN214X."**************************************************"
1 ETN251 End of phase: "'Adjust Deletion Packages'"

BW/4HANA

uninstall, CL_MDG_FND_UNINSTALL , KBA , BC-UPG-OCS , Online Corr. Support (Tools:Supp.-Pack., Addon Install/Upgr) , Problem