Why has the December 2024 upgrade mangled menu and submenu displays in LibreOffice?

[Windows 10]

If I run LibreOffice suite in safe mode, the issue is controlled, but I then can't coordinate with Zotero reference manager. Otherwise, word processor and spreadsheet pages look like this, with blacked out menu and submenu labels and actions, duplicated content and worse. Might it have created conflicts for the graphics accelerator card? I also noticed that the upgrade slipped in a requirement for an on-line connection, which I restored to local control. I can send screen shots if helpful.

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