Hello,
I have a problem regarding equation in Latex.
I know the latex format I plug in is correct as I took it from a latex file I’ve already done.
But when I want to display my latex formula in professional mode my \phi become \pi and I don’t understand why.
I just download the latest version of onlyoffice.
Hey @Sidarim, 
Got it — the bug where \phi is incorrectly rendered as \pi.
We’re already looking into it and I’ll write back here as soon as we have a fix.
Thanks a lot for the clear report and screenshots! 