Amazon.SimpleEmailV2 invalid nextToken

Question

I'm using Amazon.SimpleEmailV2 SDK to utilize the SuppressedList in my service. When i'm trying to retrieve data from the Suppress list my initial request works as intended, I get my result with a nextToken indicating that there are more results to fetch.

The nextToken is then used in a second request to fetch the remaining data. On the second request however, I get the following error:

Amazon.SimpleEmailV2.Model.InvalidNextTokenException: 'Token is invalid.'
   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleExceptionStream(IRequestContext requestContext, IWebResponseData httpErrorResponse, HttpErrorResponseException exception, Stream responseStream)
   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.<HandleExceptionAsync>d__2.MoveNext()
   at Amazon.Runtime.Internal.ExceptionHandler`1.<HandleAsync>d__6.MoveNext()
   at Amazon.Runtime.Internal.ErrorHandler.<ProcessExceptionAsync>d__8.MoveNext()
   at Amazon.Runtime.Internal.ErrorHandler.<InvokeAsync>d__5`1.MoveNext()
   at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`1.MoveNext()
   at Amazon.Runtime.Internal.Signer.<InvokeAsync>d__1`1.MoveNext()
   at Amazon.Runtime.Internal.EndpointDiscoveryHandler.<InvokeAsync>d__2`1.MoveNext()
   at Amazon.Runtime.Internal.EndpointDiscoveryHandler.<InvokeAsync>d__2`1.MoveNext()
   at Amazon.Runtime.Internal.CredentialsRetriever.<InvokeAsync>d__7`1.MoveNext()
   at Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__10`1.MoveNext()
   at Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__10`1.MoveNext()
   at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`1.MoveNext()
   at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`1.MoveNext()
   at Amazon.Runtime.Internal.ErrorCallbackHandler.<InvokeAsync>d__5`1.MoveNext()
   at Amazon.Runtime.Internal.MetricsHandler.<InvokeAsync>d__1`1.MoveNext()
   at Messenger.Providers.SuppressionListAdapter.<GetSuppressedListAsync>d__3.MoveNext() in C:\repo\Messenger\Messenger.Business\Providers\SuppressionListAdapter.cs:line 35

The code we've built looks like the following:

public async Task<List<SuppressedListResponse>> SearchSuppressedListAsync(string searchString, List<SuppressedListResponse> recipients, string nextToken = null)
{
    var response = await _ses.ListSuppressedDestinationsAsync(new ListSuppressedDestinationsRequest
    {
        PageSize = 100,
        NextToken = nextToken,
        StartDate = DateTime.MinValue,
        EndDate = DateTime.UtcNow.AddDays(1),
        Reasons = new List<string> { "BOUNCE", "COMPLAINT" }
    });

    recipients.AddRange(response.SuppressedDestinationSummaries
        .Where(x => x.EmailAddress.Contains(searchString))
        .Select(x => new SuppressedListResponse
        {
            EmailAdress = x.EmailAddress,
            Reason = x.Reason,
            LastUpdated = x.LastUpdateTime
        }));

    if (!string.IsNullOrWhiteSpace(response.NextToken))
    {
        return await GetSuppressedListAsync(recipients, response.NextToken);
    }

    return recipients;
}

Which in turn calls the following method:

public async Task<List<SuppressedListResponse>> GetSuppressedListAsync(List<SuppressedListResponse> recipients, string nextToken = null)
{
    var response = await _ses.ListSuppressedDestinationsAsync(new ListSuppressedDestinationsRequest
    {
        PageSize = 100,
        NextToken = nextToken,
        StartDate = DateTime.MinValue,
        EndDate = DateTime.UtcNow.AddDays(1),
        Reasons = new List<string> { "BOUNCE", "COMPLAINT" }
    });

    recipients.AddRange(response.SuppressedDestinationSummaries
        .Select(x => new SuppressedListResponse
        {
            EmailAdress = x.EmailAddress,
            Reason = x.Reason,
            LastUpdated = x.LastUpdateTime
        }));

    if (!string.IsNullOrWhiteSpace(response.NextToken))
    {
        return await GetSuppressedListAsync(recipients, response.NextToken);
    }

    return recipients;
}

I've tried to upgrade the SDK to the latest stable version which did not give me the expected result. I've also tried to limit the pageSize also without any progress.