Hello Aspose! We have the same problem. The problem is when we convert Word document with Aspose.Words component and after convert it back to Word, code throws exception after documentBuilder.InsertHTML method. The cause is evident. When using Style attiribute in tags (obviously generated by Word) and assigning border-left, border-top values etc. instead of just border, the error is generated. Sure, we could parse border-left, border-top away, but this is not the solution. InsertHTML should also recognize these CSS attributes. It’s according CSS2 standard.
Thank you in advance