This is getting ridiculous ... almost 18 years since the bug was introduced and almost 5 years since this bug report, and Adobe has STILL (as of InDesign 20.1) not fixed these CRITICAL bugs with nonbreaking or optional hyphens in imported .docx files!!

Great example from Aljaz. Needs to be fixed, Adobe!

We are in 2024 and, after almost 4 years, this bug was not yet addressed...

As displayed in the uploaded example by Teo all nonbreaking hyphens disappear when placed into InDesign (V18.2.1.) from DOCX. It is a critical error that can, if not noticed, change the meaning of the sentence (e.g. "use 1-2 mg of product" vs "use 12 mg of product").
DOCX is the standard word format and as such present the majority of the imported text documents. A bug that can have such a major contextual effect on the final result should be fixed asap.

Can't understand, why thats an ongoing problem! ID 18.2.1 (April 2023)

This bug has been around for ~15 years, ever since the .docx import filters were added to InDesign.
Adobe, please fix it already!
In addition to nonbreaking hyphens (Ctrl+Shift+_ in Word) being deleted on import, the same thing happens with optional hyphens (Ctrl+- in Word). This problem does not occur with .doc files, only with .docx.

Had this problem just recently :/

This is still around in CC 16.3
You can use RTF-Format as a work around.

This has been around for a while, and it's easy to miss it until the production is almost done.

A workaround to this is to find all nonbreaking hyphen by searching for ^~ in Microsoft Word and replacing it by a regular hyphen prior to importing your document.

But this needs to be fixed soon. If you don't catch it soon enough in the production, you have to manually add every dropped hyphen and it can be a major time concern.

Not just importing but also copy and paste! I just got caught out with this!