Created attachment 186441 [details] Table on east asian vertical page Open attached documents in Word to see how the layout is there. Open attached documents in Writer. The table has zero height because the frame, which contains the table, has zero height. When drag the frame to a meaningful height you see, that the table itself exists.
Created attachment 186442 [details] table on mongolian vertical page Remark: To generate vertical page layout in Word you need to install corresponding language packs in Windows.
Confirmed Arch Linux 64-bit, X11 Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 79e60bb93f69370f23010adb078b5a5de5a1e7b2 CPU threads: 8; OS: Linux 6.2; UI render: default; VCL: kf5 (cairo+xcb) Locale: fi-FI (fi_FI.UTF-8); UI: en-US Calc: threaded Built on 6 April 2023