PIE crashes on stop play


My PIE crashes on stop play when I try to load the same level instance twice.
For this, I am using the load level instance node as shown in the example:

When I play this, only one instance is visible in PIE, the world outliner during PIE only shows the content of the spawned level once.
I have tried debugging with every piece of information I could think of, before and after every node, through this I was able to isolate that the spawning process somehow leads to the crash. The crash report I am providing shows no signs of anything crashing. I have dug through the log file very thoroughly and nothing seems out of the ordinary.

[Crash log][2]

Does anyone have an idea what is going on here?
Am I trying to achieve something that is not possible using these methods?

FYI, I did manage to get this all working when I tried spawning multiple identical instances of a blueprint, which I intend to return to if I cannot find a way to get this to work.

Just found out it is fixed in 4.19

See UE-52925 for more details: Unreal Engine Issues and Bug Tracker (UE-52925)