Try logging out and logging back in to see it i makes a difference. You may also want to run a file check to verify that none of the game's assets have become corrupted. Open the LaunchPad and click on the Wrench icon in the lower left. Select Validate Game Assets and then click Validate. The program will run through a check of all of its files. If any are corrupted, Uninstall and Reinstall the game from the same menu. Run the game as administrator right after. Let me know if this helps!
I believe you can correct this by starting Launchpad, clicking on the bottom right hand corner language setting (with a little flag), switching it to any language other than yours, then back to your language. It is similar to a bug we thought we had squashed some time ago. Please let me know what happens with that.
Menu's constantly disappear for me, eventually they reappear after a few minutes when first logging in.