Upload a presentation with a table and the black border/gridlines disappear when the file is opened in OnlyOffice

[Constantine]

Hello again @lfvan

I see new thread with attached file, please see the reply in original post:

Table in presentation loses gridlines/borders when uploaded and opened in OnlyOffice

I am trying to upload a presentation with a table and the black border/gridlines disappear when the file is opened in OnlyOffice. If I add another slide with a table to the same ppt and reupload, then OnlyOffice will upload the file and add borders to both tables.

Locking this post as duplicate.