CC fails often, too often, but always hard to pinpoint/reproduce issues.
I think however I stumbled upon one.
CB was open with 1 project which had been parsed. Outside CB I created a new project and then dragged and dropped the cbp file into the Projects tab within CB ==> in the Code::Blocks log tab, no sign to be found that it would be parsed, guessing it was not parsed.
NativeParser::CreateParser(): Finish creating a new parser for project 'Asio4-Dns'
NativeParser::OnParserEnd(): Project 'Asio4-Dns' parsing stage done!
Opening /home/killerbot/Projects/Boost/Asio/Asio5-Buffers/Project/Asio5-Buffers.cbp //<===== just load, no parsing
Done.
Then I click right click on the project and choose "Reparse project" ==> again no parsing traces to be found in the CB log tab.
Then I closed the first project (in this case the Asio4) and then we see parsing happening on the Asio5. ==> new entries in the log :
NativeParser::DeleteParser(): Deleting parser for project 'Asio4-Dns'!
NativeParser::CreateParser(): Finish creating a new parser for project 'Asio5-Buffers'
NativeParser::OnParserEnd(): Project 'Asio5-Buffers' parsing stage done!
Note : clicking reparse project does show traces now in the log.
Extra info : Use one parser for the whole workspace
NOte : Concurrently parsing threads is on 1 (unable to change it, so what's the purpose ?)