Index entry missing after Word import

Hi guys!

I have a question about a bug in Indesigns Word-import, which seems to exists since CS6. There's a couple of old threads about this topic, but no answer has been found yet.

https://community.adobe.com/t5/indesign-discussions/index-entry-missing-when-importing-word-file-in-indesign-cs6/td-p/10562439

https://community.adobe.com/t5/indesign-discussions/index-entry-missing-when-word-file-is-imported-into-indesign/m-p/9460386

When I import a Word file which contains Index entries AND anchored Text frames, it seems like InDesign ignores all Index entries until the last Text frame. Only the last couple of Index entries are imported.

I made a small demo-file to show the phenomenon. The demo file contains 7 index entries and 2 anchored text frames. But only the last 3 index entries are imported successful, the remaining ones are being ignored during import.

But as soon as I remove the anchored text frames in Word, every index entry gets imported to InDesign.

So far, I've tried:

- converting docx to doc

- converting docx to rtf

- importing with CS6, CC2016, CC2017 (tried both Windows + Mac versions)

- cleaning the docx with words internal "clean document" function

Does anyone know about this problem and knows a workaround?

Any help is appreciated, thanks in advance,

Tobi