When Initialdata is loaded, several tables are updated. UC_TABLE and UC_HTYP are important for Agent onboarding, if there is an issue, Agents will not connect.
Maybe something went wrong during the load?
Normally it should look like this example (version 12.3):
20201115/081926.035 - U00038042 Loading Initialdata ...
0201115/081946.803 - U00021103 Table UC_TABLE was exported on: 2020-06-12 17:52:39.127
20201115/081947.116 - U00021104 ' 243' records loaded in table 'UC_TABLE'.
20201115/081950.156 - U00021103 Table UC_HTYP was exported on: 2020-06-12 17:52:39.247
20201115/081950.200 - U00021104 ' 43' records loaded in table 'UC_HTYP'.
Does the DB Load Log look similar?
Is it the same version, which have been loaded last time?
Was there any "HTYP" Load in between (this is what Ralf mentioned)?