We are extremely sorry for the delay.
The root cause of this issue was your document contains HTML Altchunk which was imported incorrectly. There is some difference how MS Word and Aspose.Words import HTML. Our development team is removing these differences and working on making HTML import just like MS Word. This will be a permanent fix to such issues and will take longer period of time.
We had logged an issue to apply a temporary fix for your issue until a permanent fix is available and we were expecting this temporary fix in November. Unfortunately, the temporary fix did not produce the desired results so we did not move that fix to live. Our product team is still working on the issue and it is present in our current month's plans.
A request to share a reliable ETA has been forwarded to our product team and we will update you as soon as we have a concrete date for this fix.