Blobs not retrieved.

[LaurenceTurner]

It seesm that this only pulls the blob memo, and does not get the full blob text.
GetStringFromMemo()

[LowArte]

Find solution

    public byte[] ReadMemo(byte[] data, int from, int size)
        {
            var memoMetaData = new byte[size];
            Array.Copy(data, from, memoMetaData, 0, size);

            var memoSize = BitConverter.ToInt32(memoMetaData, 5);
            var OffsetAndIndex = BitConverter.ToUInt32(memoMetaData, 1);
            var index = OffsetAndIndex & 0x000000ff;
            var offset = OffsetAndIndex & 0xffffff00;
            var head = new byte[6];

            this.stream.Position = offset + 12 + index * 5;
            this.reader.Read(head, 0, 6);
            this.stream.Position = offset + head[0] * 16;
            var buffer = new byte[memoSize];
            this.reader.Read(buffer, 0, memoSize);
            return buffer;
        }

Need add ReadMemo method to ParadoxBlobFile class and when read MemoBlob add

case ParadoxFieldTypes.MemoBLOb:
   var memoData = this.block.file.ReadMemo(this.block.data, (int)buff.Position, dataSize);
   val = Encoding.Default.GetString(memoData, 0, memoData.Length);
   buff.Position += dataSize;
   break;

[JWTeunisse]

At last a solution how to get the memoText contents by the Array of entries in memo .MB file. The paradox designers used a rather complicated way of storing the memoText blobs.