Exception - Minimserver crashes

[thempel]

Hi,
I'm using Lumin App to Minimserver2 on my Synology DS1618+ .
When I go to All Artists, Show All, View All, the Lumin app crashes, and so does Minimserver. The stack trace is:
... is running
MinimServer: exception while processing action request: java.util.ConcurrentModificationException
java.util.ConcurrentModificationException
at java.util.ArrayList.sort(ArrayList.java:1464)
at java.util.Collections.sort(Collections.java:175)
at com.minimserver.Server$ValueContainer.doPopulate(Server.java:22540)
at com.minimserver.Server$ValueContainer.populate(Server.java:22452)
at com.minimserver.Server.populateContainer(Server.java:9504)
at com.minimserver.Server.getContainer(Server.java:9431)
at com.minimserver.Server.populateContainer(Server.java:9503)
at com.minimserver.Server.access$33800(Server.java:152)
at com.minimserver.Server$ContentDirectoryProvider.doBrowse(Server.java:25913)
at com.minimserver.Server$ContentDirectoryProvider.browse(Server.java:25857)
at org.openhome.net.device.providers.DvProviderUpnpOrgContentDirectory1$DoBrowse.ac​tionInvoked(DvProviderUpnpOrgContentDirectory1.java:978)

Even if Lumin is doing something wrong, the server shouldn't crash.
thanks!