Personas: FLAVORLIST_SEARCH related error with support pack update

Hello, we are in the process of updating support packs (SAP_BASIS) from SAPKB74015 to SAPKB74016 with personas version SAPK-30005INPERSONAS. When some of the users are first logging in through GUI and execute their first transaction, they are seeing this error at the bottom of the screen 'The command FLAVORLIST_SEARCH could not be executed. Execution is not allowed in the current context.'. It will still let the transaction to be executed and the error is not shown any more. The behavior is random and all these users are IT users with broad SAP access. I cannot find any information related to this error message on SAP support or in this community. Can you please let me know how this error can be resolved?

Regards,

Koti