Frozen sheets don't always save

When I freeze rows/columns and save a spreadsheet it doesn’t save the frozen rows/columns… When I open it a few days later or on another PC the freeze is gone…

Anyone else having this?

Conditional formatting doesn’t save either!!

To add to the list, sheet order isn’t saving correctly… And CTRL-Z to undo a series of changed wrecked the spreadsheet… Is LO really this buggy??

One of my acquaintances (computer) says “Little information for conclusions”… Which version of office suite? What OS? What is the format of saved files?

As far as I see, you do not provide any additional information. Maybe for you it would be easier to report a bug https://bugs.freedesktop.org/enter_bug.cgi?product=LibreOffice with detailed description, LibO and OS versions, example files and screenshots (if available)