[Error] Dynamic Shadow Problem

[NikDie]

Hi Everyone,
i encountered a strange Problem with the Dynamic Shadows.
When you have a Map Transfer while other Events having a Shadow displayed, this Shadow will be kept to the next Map, even if there is no Light Source etc.
You can even "stack" more of one instance of the Shadows, its like @ombrelist dispose inside of def clearShadows is not working...
The Error happens in a fresh copy of Essentials V19.1 as well, so i guess i haven't messed up anything with my custom script changes.
Anyone has the same Problem, or even better, a solution?

The Problem looks like this:
(Entering the Door and after the map transfer the shadow of the Blackbelt is still there, while the players shadow is gone)

Thanks in advance,
Nik