If multiple configure files are open at the same time and have errors, changing the Autoconf editor preferences for macro versions for autoconf or automake doesn't clean up errors in all open files - just the last one opened. This should occur for all files.
A fix has been made to the Autoconf editor logic such that it listens for specified project option changes. There is now notification when the macro versions are changed in the new Autotools editors property dialog. When this occurs, all editors for that project are updated.