Red-lines suddenly showed up when converting Docx to PDF

We don’t have this issue before until yesterday. All of the sudden, there are red lines suddenly showing up in our converted documents.

One of the documents getting converted have 3 vertical red lines and I got 9 MinorFormattingLoss warning with the same message “Table column widths may need to be calculated. Rendered column widths could differ.”.

@virgilio.dolosa.rivtech Could you please attach your problematic document here for testing? We will check the issue and provide you more information.