Created attachment 182255 [details]
Example OOXML strict
Open attached document. It contains a text in Japanese with top-bottom, right-left text direction. The text direction is set in the page layout. The document was created in current MS Word 365.
The text direction gets lost on loading, if the file is in OOXML strict format, but it is read in OOXML transitional.
Created attachment 182256 [details]
The same text saved in OOXML transitional
I see the problem in Version: 220.127.116.11.alpha0+ (x64) / LibreOffice Community
Build ID: 4e2ce2a460458f17ee4360c45a2da2fc4b4d753e
CPU threads: 8; OS: Windows 10.0 Build 19043; UI render: Skia/Raster; VCL: win
Locale: de-DE (en_US); UI: en-US
I confirm it with
Version: 18.104.22.168.alpha0+ (x64) / LibreOffice Community
Build ID: bfb0dbee201a69c26293947c78356f320ff62a0b
CPU threads: 4; OS: Windows 10.0 Build 19044; UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: en-GB
Calc: CL threaded