Previous .odp LibreOffice files sent from my Windows 10 laptop could be opened by all recipients on their Android phones or home laptops.

Today, January 17,2026, the .odp file I sent to my husband's Android phone could not be opened and read in its entirety. I need to add that I have had recent (Jan 8th) updates to my Libre application, especially the "program" folder.

In the email I sent with my attached .odp file, the first slide is displayed with the filename.odp, a download icon, then an upload icon.

When I clicked on the filename: 
-- At the top of the resultant screen, the filename is displayed with "Read-only". 
-- Then a horizontal section states "Read Only - To make changes, save a copy of this file into a Microsoft Office file format." then two buttons for "Save a copy" and "Dismiss".
-- Another horizontal section states "Read Only - Save a copy to edit." followed by the two buttons listed above. This option is not necessary as I am allowing NO EDITS to my original file.
NOTE: The "Save a copy" is not used as I no longer have Microsoft Office.
-- Then there are apparent spaces for the first 3 slides...but those spaces are all empty.

The file never appears to even try to download.

I have changed the Severity to "critical" as there are several recipients of my LibreOffice files who work in fairly significant functions within my community, and need the information that I send them!!

Thanks for looking into this seeming bug....