The first time OnConstruction is called after duplication the Actor still has default class values

A Blueprint derived from a custom Actor class resets its variables to their default values when the Actor is duplicated, even if the actor being duplicated has a different value for that variable. This only occurs on the first tick; after that, the variable remembers what it should be and switches back to it.

The user has included a test project with a MyActor class that prints the variable's value in the log.

Note
This does not appear to happen when creating a BP from Actor and creating the variable inside the BP. A duplicated actor in that case retains the variable's value as expected.

1. Load the attached project
2. Create a new MyActor Blueprint
3. Place the BP in the level
4. Change the value of the Value variable in the Details panel
5. Alt-Drag to duplicate the actor

Results:
In the output log, you'll notice the variable output 0 first, then whatever value it was given in the Details panel. This will happen with every duplication.

Generating dll while UE4 editor is opened

first time OnConstruction is called after duplication Actor still has default class values