Going over some other authors modules and making them blue room and checking they are running on XOOPS 2.4 with no worries as some of the inherit core bugs where finally removed in 2.4 which means all the work around to make sure data would display correctly in the module means that there is a dynamic role played by the module author to provide a solution to the old \' \" bugs with the core.
These work arounds have been failing on some modules one of them that has been updated as an example ShoutBox 4.07 now work with the later series as the work around would provide complications to the proper execution of this clean code.