Works fine here, if "Regular expression" is unchecked, otherwise I get the same message as you, what is absolutely correct in this case.
I've only "Match case" and "Auto-wrap search at eof" checked. "Regex expression" is unchecked (in Replace mode).
-Sometimes I can't edit a tab anymore. I need to change tab and then come back to my previous tab to be able to edit text once again.
As ollydbg wrote, how to reproduce ?
Does clicking into theeditor help, without the need to change the tab ?
@ollydbg > Sorry I forgot to translate but MAJ = SHIFT . Sometimes CTRL+SHIFT+C or CTRL+SHIFT+X stop working (and that's not because I've caps lock enabled ^^).
As said previously, as soon as I find how to reproduce the bug with tabs, I ' ll tell you. (I still have it but doesn't know yet why it happens, clicking inside a lost tab won't focus it, I really need to switch tabs and go back to the lost on to enable it)