Hi there, Typing \oint (note the single "i") in math mode shows the relevant symbol on screen, but the symbol for double integral version \oiint (note the double "ii") is not shown in lyx editor: instead a tiny space character (I assume) is shown. The resulting pdf is fine. What might be the cause? LyX 2.3.4 (same for 2.3.3), macOS mojave Regards,
Nusret
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