Hi Kim,
Thank you for using Syncfusion products.
We were able to reproduce the mentioned issue with "Index was outside the bounds of the array" exception with few other text documents during text to word conversion but we have fixed this issue internally in our latest source.
Could you please report this issue along with your sample text document through Direct Trac Developer Support System?
https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidents so that we can ensure the fix for your sample document and provide you with the patch for this issue as well as you can take the advantage of the expertise of a dedicated support engineer and a guaranteed response time and we hope you will take advantage of this system as well. If you have already reported, please ignore this.
Please let us know if you have any other questions.
Regards
Rajendran