Hey,
i'm not sure i can help with that...but i can give you some ideas what I would try:
1. Try to use the rawstring type in the exporting or changing parameters with a new table type, instead of using the Tables section. Maybe it is allowed there.
2. Use a new field typed string, and convert the raw into the string, and then back from string to raw after it was passed.
3. Start a new thread with this topic. I'm really not an expert on this problem. Sorry
Could you also please mark the answers that helped you solve the problem as correct or helpful, so that it might help others too in the future?
Thanks and good luck! 