I use the Element - Syle - Add Small Caps function. For my test I adopt the default settings (which are not suitable for the font, but here this is irrelevant)
In the version currently present in Debian Testing (20201107) the glyphs produced are imperfect, but still graphically correct:

In the latest version (FontForge-2022-03-23-a8be73b-x86_64.AppImage which I installed in the same Debian testing as AppImage), the glyphs are totally upset: