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There were probably some changes to text and font issues, between versions 0.91 and 0.92. But of all the possible reasons there might be for this kind of problem, I would not expect to show up on the same computer!
I'm not a Linux user (although maybe soon I will be). But I seem to recall there there is a way to use fonts that aren't actually installed. Maybe like when using a font manager? Or was that Macs I heard that about??
When you said it happens with installed fonts, you mean installed on the system, rather than installed into the font manager, right? Could it be possible some of your fonts aren't installed on the system, but they work in other programs anyway?
Or in Linux, can you have separate user accounts? Could some fonts be installed only for certain users?
Sometimes font won't show up if they're poorly made. (Inkscape can be somewhat picky about that.) But I'm not getting that impression for your problem description.
Well, if none of that seems to help, someone else will be along shortly, who can help better