Greek tonos not showing in comments in Writer

Hello. When using versions 7.2.5 or 7.3.0 (in manjaro linux) the program properly displays Greek text with intonation marks (tonos). However, the tonos cannot be input when adding comments. This does NOT happen when entering comments in 7.2.5/7.3.0 Calc. This also does NOT happen in older LO version 7.1.8. See attached screenshot.

Any ideas, suggestions?

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