@contentiskey
Yes. That is my current way of temporary solving the problem, though the new editor looks quite impressive and would like to try it
Hopefully there will be a patch or something to solve this problem (without re-installing from scratch) if it is related to WP itself.
@contentiskey
OK. I went to try that plugin but it is not working. While all plugins are disabled in troubleshoot mode, the editor is still not working. I think it is a bug possibly related to the WP core codes, not with the plugins.