Error when loading showfile in 1.6.15i

Hello dear Support,

since i updated to 1.6.15 i sometimes get an error when loading a show file.

It says “Error: error-desc.unexpected” in the bottom line.

And i cannot load any showfile until i restart the engine.

Strangely this always happens when the connection in the “engine selection window” at startup shows kind of an unstable connection (jumping between connected and disconnected). But i can still connect to the engine.
After restarting the engine everything is back to normal.

This never happened in the previous versions.

I am not sure If i can do anything on my side. Maybe just as kind of a “bug report”.