The emails that are sent by civicrm 5.5.3 (but had same problem with 5.4.1) to a an assigne of a case activity don't have the names of the client, assigne, etc but only a signpost made up of name_{contact_id}. Why?
Example from an e-mail:
> Client name_74294
> Activity type Incontro Individuale
> Subject Incontro Test 2
> Created by name_74294
> Riportato Da name_74294
> Assegnato a name_28453
Any idea, advice? Johan