Writer: Anyone else finding Writer making errors in paragraph auto-numbering?

Here MS Word 2003 is correct:

On the same doc, LOW is not, putting 9 in place of 10:

No mention of this issue in:

My Migration from MS-Office to LibreOffice
My Migration from MS-Office to LibreOffice - The Document Foundation Wiki

but an allusion in:

Be aware that the conversion may not be perfect because the suites are not based on the same principles. You’ll have to check thoroughly the result. The main points to care for are tables and numbered paragraphs (outline or chapter headings, lists).
how do I convert a microsoft word doc to a libre doc

Version: 25.2.5.2 (X86_64) / LibreOffice Community
Build ID: 03d19516eb2e1dd5d4ccd751a0d6f35f35e08022
CPU threads: 4; OS: Windows 7 Service Pack 1 X86_64 (6.1 build 7601); UI render: Skia/Raster; VCL: win
Locale: en-GB (en_GB); UI: en-US
Calc: threaded

Do you edit a Word .doc(x) directly in Writer? Is this an original (i.e. written from scratch, not converted) .odt?

In Writer, a list “identity” is based on the use of a list style. If your paragraphs are not controlled by the same list style, you’ll get what you experience (interleaved lists). The notion of list style does not exist in Word. A non-trivial, imperfect heuristics tries to guess which lists are independent and where new occurrences of a given list start. Elements used are, among others, edit history. If this edit history was rather erratic, wrong decisions can be made.

Note that chapter numbering is just another list; so the same heuristics applies.

The only way to diagnose the cause is to have a look at your document. Reduce it to the strict necessary, overwriting confidential data. Keep in this document the preceding 9., the faulty 9. (which should be 10.) and the 10.1 at least, and attach it.

No. Just opened it.

No. As I said, it is the same doc as in Word.

Yowch. Thanks for the warning. This is all the worse for the fact that #1-9 did not show the problem, making #10 easy to overlook.

Warning needed in docs, I think!

I’ll accept your diagnosis. Thanks.