Fixed number of bars per system is NOT working for Full Score


I am following this to fix the number of bars per system to 4. However, this is not working for Full Score!

Any ideas?

If you show signposts (making sure to include system break signposts), is there a system break at the start of that system that has the property “Wait for next system break” activated? (You can only see this property in Engrave mode)

If so, deactivate it or delete the system break altogether.