Own assignmentblock switchs to Lazy mode if i change it to editable

Hello,

i have created in a own z-component my own assignmentblock.

This own assignmentblock i added to the overviewpage PRDIOOV.

The assignmentblock is now visible in the UI and also the data is displayed correctly.

I have also added a button "Edit" to this own assignmentblock and a eventhandler for this event.

At the moment is the behaviour like this.

As soon i click the button edit the assignmentblock switchs in Lazy-mode.

If i open it once again all fields are editable.

For me it is not clear why it switchs in lazy mode.

Any ideas on this?

Thank you

Best regards

Manfred