When i’m trying to type \vec{j} the symbol gets weird like on photo below.
Version is 9.3.1-1 on Arch Linux.
Hi, @LinuxPrince 
Thank you for the report and for the screenshot. We are currently investigating this behavior on our side.
As soon as we have any updates, we will post them here.
Hi, @LinuxPrince
Thank you for your report. We have checked the issue on our side and registered it in our internal bug tracker.
At the moment, we do not have an exact ETA for the fix, but we will update this thread as soon as we have any news.