scala.MatchError with Checkbox Set Selector

Receiving this error when trying to display a form containing the Checkbox Set Selector - it has been updated to the latest version. scala.MatchError: [[MendixIdentifier:: id=48695170970944000 objectType=Contacts.Customer entityID=173]] (of class java.util.ArrayList) at com.mendix.jH.a(SourceFile:143) at com.mendix.jH$d.a(SourceFile:101) at com.mendix.jH$d.apply(SourceFile:99) at scala.collection.immutable.Set$Set1.foreach(Set.scala:74) at com.mendix.jH.b(SourceFile:99) at com.mendix.jH.a(SourceFile:83) at com.mendix.jH.a(SourceFile:44) at com.mendix.pG.a(SourceFile:296) at com.mendix.pG$a.apply$mcI$sp(SourceFile:195) at com.mendix.pG$i.a(SourceFile:211) at com.mendix.pG$i.execute(SourceFile:208) at com.mendix.core.session.Worker$$anonfun$receive$3.applyOrElse(SourceFile:132) at at at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237) at at java.util.concurrent.ThreadPoolExecutor.runWorker( at java.util.concurrent.ThreadPoolExecutor$ at To me this isn't a very informative error message - can anyone suggest what might be causing it? Thanks
1 answers

Hi David,

I fixed this bug a week ago; it popped up in another custom widget as well. The fix will be part of Mendix 5.2.0, which will arrive within a month.

Sorry for the inconvience,