Applicable to Entuity v21.0 only. If you are using a different version of Entuity, please see the following as appropriate:
View contents population issue:
There is an issue whereby Views that are specified to have their contents populated using a union of base Views, will be incorrectly populated with objects from the 'All Objects' View.
This issue will be fixed in Entuity v21.0 P01. Until then, please contact Entuity Support for a hotfix.