There is an intermittent issue observed when "Accept" one or more alarms in OC alarm console . There will be an error message "Cannot read properties of undefined (reading 'data')".
UIM 23.4 CU3 /CU4
DE639345
This issue can be reproduced when one user accepts the alarm first, then unassigns it, and tries to accept it again.
The fix for this will be included in DX UIM 23.4 CU5 (tentative)