Hi ,
Thanks for coming back to me.
The error
'Uncaught TypeError:Cannot read property 'length' of null'
pops up when I put the cursor in the place of the actual body of writing the tiddlers.
When I put the sign ' < ' the error pops up.
I did not do any actual customization to the TD.
My plugins are the following:
[[$:/plugins/telmiger/Clipboard]]
[[$:/plugins/telmiger/details]]
[[$:/plugins/telmiger/EditorCounter]]
[[$:/plugins/telmiger/listreveal]]
[[$:/plugins/telmiger/todonow]]
and obviously the TW5 core
hopefully this is the info you need.