Hi all - we've just pushed a hotfix to Live that only contains one thing: a possible fix for the ongoing cursor issue. You should see a small download hit Steam momentarily (or you can grab it right away by verifying your files).
If you're still seeing the cursor issue AFTER you've patched, please document exactly what you were doing before it occurred, along with your location and the region you're connecting to. You can then submit a ticket directly to us using this link and make the subject of your ticket "[reddit] Cursor Issue Steps" to help us further - we appreciate it!