Getting export name on Desktop throws NullReferenceException depending on memory pages

[phrohdoh]

using System;
using System.IO;
using WasmerSharp; // 0.7.0

public class Program
{
    static void Main()
    {
        var mem = Memory.Create(minPages: 1, maxPages: 3); // run with maxPages of 3, then re-run with 2
        var memImport = new Import("env", "mem", mem);
        var wasm = File.ReadAllBytes("run_me.wasm");
        var inst = new Instance(wasm, memImport);

        foreach (var exp in inst.Exports)
        {
            Console.WriteLine("name: '{0}', kind: '{1}'", exp.Name, exp.Kind); // line 16
        }
    }
}

(module $my_module
    (func $add4 (param $augend i32) (result i32)
        local.get $augend
        i32.const 4
        i32.add)
    (func $mul2 (param $multiplicand i32) (result i32)
        local.get $multiplicand
        i32.const 2
        i32.mul)
    (func $add4mul2 (param $v i32) (result i32)
        local.get $v
        call $add4
        call $mul2)
    (export "run_me" (func $add4mul2))
) ;; compile this to wasm, possibly via https://webassembly.github.io/wabt/demo/wat2wasm/

Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
  at System.Text.UTF8Encoding.GetCharCount (System.Byte* bytes, System.Int32 count, System.Text.DecoderNLS baseDecoder) [0x000ff] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/external/corefx/src/Common/src/CoreLib/System/Text/UTF8Encoding.cs:1418 
  at System.String.CreateStringFromEncoding (System.Byte* bytes, System.Int32 byteLength, System.Text.Encoding encoding) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/external/corefx/src/Common/src/CoreLib/System/String.cs:484 
  at System.Text.Encoding.GetString (System.Byte* bytes, System.Int32 byteCount) [0x00033] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/text/encoding.cs:1366 
  at WasmerSharp.WasmerByteArray.ToString () [0x0003f] in <d3625c313af7497fafb9fb2a435e5680>:0 
  at WasmerSharp.Export.get_Name () [0x0000c] in <d3625c313af7497fafb9fb2a435e5680>:0 
  at Program.Main () [0x00051] in wasm-in-dotnet-frmwrk/src/Program.cs:16 
[ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Text.UTF8Encoding.GetCharCount (System.Byte* bytes, System.Int32 count, System.Text.DecoderNLS baseDecoder) [0x000ff] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/external/corefx/src/Common/src/CoreLib/System/Text/UTF8Encoding.cs:1418 
  at System.String.CreateStringFromEncoding (System.Byte* bytes, System.Int32 byteLength, System.Text.Encoding encoding) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/external/corefx/src/Common/src/CoreLib/System/String.cs:484 
  at System.Text.Encoding.GetString (System.Byte* bytes, System.Int32 byteCount) [0x00033] in /Users/builder/jenkins/workspace/build-package-osx-mono/2019-10/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/text/encoding.cs:1366 
  at WasmerSharp.WasmerByteArray.ToString () [0x0003f] in <d3625c313af7497fafb9fb2a435e5680>:0 
  at WasmerSharp.Export.get_Name () [0x0000c] in <d3625c313af7497fafb9fb2a435e5680>:0 
  at Program.Main () [0x00051] in wasm-in-dotnet-frmwrk/src/Program.cs:16 

System Information

Mono JIT compiler version 6.8.0.123 (2019-10/1d0d939dc30 Thu Mar 12 23:19:08 EDT 2020)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
    TLS:           
    SIGSEGV:       altstack
    Notification:  kqueue
    Architecture:  amd64
    Disabled:      none
    Misc:          softdebug 
    Interpreter:   yes
    LLVM:          yes(610)
    Suspend:       hybrid
    GC:            sgen (concurrent by default)