LUA debug doesn't work?

[m_ree_bipolar]

Debug in LUA doesn’t seem to work. NOTHING goes to the console, even when I switch only “Debug (Errors Stream)” on, and try simple things like:
io.stderr:write(“This is a debug message\n”)

[TwoSteps]

I tried on a random puzzle and it worked. Could you please give more details? Maybe @aCat can help?

[aCat]

No idea, debug printing is working for me also, just checked a second ago.
Maybe the problem is somewhere else? Like a mistake before your actual print?

You can share more detailed example so we can try to help.

Lua is a tricky language you know ^^.