Recent forums changes broke Win 8 mobile keyboard compatibility

Hello. A few days ago I noticed that I can no longer post replies or send PMs w/ my Windows 8.1 tablet. When you click in a reply box the onscreen keyboard disappears 1 second later. I have found another forum that had a similar w/ Win 8 on screen keyboards, however there I was able to fix the solution by moving from Enhanced editor to Standard. There is no Enhanced editor here, so I tried moving to basic. Unfortunately it doesnt work either. Any insight or workarounds would be awesome.