Myob not responding error - Remittance advices

This issue popped up a few weeks ago but seemily fixed itself at the time. It's occuring again and seems worse then before. When trying to send out remittance advices (from paid bills) MYOB is going into a "not responding" error and crashing. 
Sometimes you can go in and try again and it will send and other times it just continues to crash. 
It occurs whether you send one or multiple emails. 
I have read and tried a few other solutions suggested on the community forum however none seem to solve the problem for me. I will list below: 
- Sending only one at a time
- Ensuring default/card 1 email is the same as the remittance email
- Deleting the email from the card and resaving 
Additionally I tried going in and resaving the form in case it was an error with that. 
None of these have solved the issue. 
If anyone has any advice or things that they have tried when this occured for them it would be greatly apprecited. 
Thank you community :)