Maven's invitation: the remembered the operation could not be completed

Memory maps do not open and show the error “The operation could not be completed” when Maven is enabled in the Map Device.

The map opens normally if Maven is disabled.

Same bug here. I wish there was least a warning "why" the operation could not be completed, that would be perfect.

Issue resolved.
First, I ran the three Eagon memories without having Maven selected on the device — basically treating them like regular mission maps with Maven disabled. After completing those three, I eventually found Eagon again while running normal maps.
On this second appearance, the option to enable Maven became available. I activated it, cleared the memory, and this time the Maven’s Invitation: The Remembered worked normally.