Problem with C# .NET 6

[ValerioPatane]

Hi everyone, I have a big problem with this library, let me explain.
I have a project written in C# .NET Framework 4.8. This project uses ZeroFormatter to serialize very large collections like these:

Collections consist of ILazyDictionary<DateTime, float>
{[{13/02/2022 00:00:00}, 10]}
{[{13/02/2022 00:01:00}, 20]}
{[{13/02/2022 00:02:00}, 30]}
{[{13/02/2022 00:03:00}, 40]}
....

This project works fine, ZeroFormatter serializes and deserializes files without problems.

Now I have another project in C# .NET 6 that have to deserialize the collections above, modify them and save them again re-serializing with ZeroFormatter.

In the .NET 6 project, ZeroFormatter doesn't work, it returns an Error: Bad IL format when serializing, but deserialization works correctly.

I read this solution at this address #112
I downloaded Alexinea.ZeroFormatter where should be the fix. Now the problem is another, when I deserialize files (serialized first with ZeroFormatter), the date is not read correctly but I obtain this:

{[{01/01/0001 00:02:04}, 10]} // The DateTime object is wrong

Another problem, serialize with Alexinea.ZeroFormatter doesn't give problems, but when the file is deserialized by the "old" ZeroFormatter it gives the following error:

Timestamp contains invalid values: Seconds = 637805664000000000; Nanos = 0

This is the StackTrace

   at ZeroFormatter.Internal.BinaryUtil.ReadDateTime (Byte [] & bytes, Int32 offset)
   at ZeroFormatter.Formatters.DateTimeFormatter'1.Deserialize (Byte [] & bytes, Int32 offset, DirtyTracker tracker, Int32 & byteSize)
   at ZeroFormatter.Segments.DictionaryEntry.Create [TTypeResolver, TKey, TValue] (Byte [] bytes, Int32 offset, DirtyTracker tracker, Int32 & byteSize)
   at ZeroFormatter.Formatters.DictionaryEntryFormatter`3.Deserialize (Byte [] & bytes, Int32 offset, DirtyTracker tracker, Int32 & byteSize)
   at ZeroFormatter.Segments.VariableListSegment`2.get_Item (Int32 index)
   at ZeroFormatter.Segments.DictionarySegment`3. <GetEnumerator> d__38.MoveNext ()
   at System.Linq.SystemCore_EnumerableDebugView`1.get_Items ()

Please help me, I need to deserialize the files correctly in .NET 6, serialize them in .NET 6 and deserialize they again in .NET Framework 4.8.

Below there is the serialization and deserialization classes

using System;
using ZeroFormatter;

namespace UploadDemoData.ZeroFormatter.Models
{
    [Serializable]
    [ZeroFormattable]
    public class SampleList
    {
        [Index(0)]
        public virtual ILazyDictionary<DateTime, float> Samples { get; set; }
    }
}

    public class ZeroFormatterOperations
    {
        public static MemoryStream Serialize(Dictionary<DateTime, float> samples)
        {
            SampleList newSample = new SampleList()
            {
                Samples = samples.AsLazyDictionary()
            };

            return new MemoryStream(ZeroFormatterSerializer.Serialize(newSample))
            {
                Position = 0
            };
        }

        public static SampleList Deserialize(MemoryStream memoryStream)
        {
            return ZeroFormatterSerializer.Deserialize<SampleList>(memoryStream);
        }
    }

NB in both my projects (.NET Framework 4.8 and .NET 6) I have installed the latest version (1.6.4) of ZeroFormatter