Same-document cross references in linked Word documents broken in browser output

I have been using RH 11 for quite some time now. We are creating our manual in Word and link the chapters to RH. A while ago, our manual for which we create an output everyday could not be displayed in Firefox anymore (after an update) so we switched to Google Chrome but since then our cross references have been broken. These cross references only point to figures or sections within the same document, not to any external documents or other chapters. These cross references have been created "normally" in Word and work fine in Word and PDF files. I am grateful for any suggestions/help to solve this problem!!!