Text size changes after delete. Bug?

The default text style is “Text Body” using Liberation Serif, 10.5, LibreOffice 6.3.1.2, Ubuntu 18.04
When I type something, select a word and start typing again, suddenly all text to the end of the paragraph looks like it’s only 5pt.

To reproduce: Type something, select the last character, type a letter. That new letter will be much smaller than the rest.

image description

What’s more, the font size selector in the toolbar insists that it’s 10.5pt text when it clearly isn’t. Ctrl+M / “Clear Manual Formatting” fixes the bug.

Is this a known bug?

Demo document: font-size-bug.odt

Cannot confirm on my Ubuntu 18.04 test system using LibreOffice 6.3.1.2 from launchpad PPA. Can you test using a fresh profile from command line:

LANG=en_US.UTF-8 libreoffice -env:UserInstallation=file:///tmp/LOTestUserProfile

Do you get the same behavior?

@anon73440385 Thanks for the feedback. It works with a fresh profile or when I just create a new document using my old profile. It’s probably something in the document. I’ve attached a small demo document. Do you see the bug with it?

And what is the role of the macro inside? Cannot confirm the behavior, but my macro security settings prevent the macro to run. Could it be that this macro causes your problem (there is a print ( text ))?.

I tried to delete the macro but seem to have failed. When I open the document, I disable the macro in the warning dialog → it’s not necessary and should not affect the result. Do you get the same behavior with the macro disabled/deleted?

I newer run macros, whose purpose I don’t understand. So it is deactivated as per security setting. And as stated in my comment above, the behavior you describe in your question is not shown.

I still have no idea what causes this behavior but I’ve found a fix/workaround:
Create a new document, select everything and copy it to the new document.