IE: System.NullReferenceException when generating output for Island

I get Internal error: System.NullReferenceException: Object reference not set to an instance of an object in the output-generation phase of building a project for Island:

E:                   Internal error: System.NullReferenceException: Object reference not set to an instance of an object
  at RemObjects.Elements.Island.IslandOutput.GenerateMethod (RemObjects.Oxygene.Code.IMethodInfo ameth) [0x00dcc] in <c3359bea8aa44ffc834920e13be07d7f>:0 
  at RemObjects.Oxygene.Code.CombinedParsedType.ForAllMethods (System.Func`2[T,TResult] action) [0x00053] in <6816f3ffccaa45ef9aefe127a6aa45ee>:0 
  at RemObjects.Elements.Island.IslandOutput.GenerateParsedType (RemObjects.Oxygene.Code.IMutableParsedType aType) [0x004de] in <c3359bea8aa44ffc834920e13be07d7f>:0 
  at RemObjects.Elements.Island.IslandOutput.<GenerateExecutable>b__19 (RemObjects.Oxygene.Code.IParsedType a) [0x000c3] in <c3359bea8aa44ffc834920e13be07d7f>:0 
  at System.Linq.Enumerable+SelectEnumerableIterator`2[TSource,TResult].MoveNext () [0x00048] in <eaea2ecd99224a0092df4529d215761a>:0 
  at RemObjects.Elements.Island.IslandOutput.GenerateExecutable () [0x012b5] in <c3359bea8aa44ffc834920e13be07d7f>:0 
  at RemObjects.Oxygene.Code.Compiler.Compiler.GenerateExecutable () [0x00000] in <6816f3ffccaa45ef9aefe127a6aa45ee>:0 
  at RemObjects.Oxygene.Code.Compiler.Compiler.Compile () [0x001d8] in <6816f3ffccaa45ef9aefe127a6aa45ee>:0 

My original target was WebAssembly, but I tried generating a test project for Windows, and got the same error message there. I can share the project privately, if necessary.

Can I get the project for this? thanx!