With the info you shared, it seems like the issue is related to blocked threads or may be any contention within the application after the changes you have done. Though application support in initial hours after the changes in XML, later seems to have...

This error actually notifies us that the Tidal Master process is exhausting its Java heap memory.  Even though the server has sufficient physical RAM, and the application has been running without issues for months, it has still ended up with a Java h...