Time Delay/Lag Switch Issue

[Carl A B]

Hello all!

I work in maintenance and one of the properties I maintain has a issue with the timer switches in the corridor. They don’t turn off when you press any other switch other than the master switch and it seems to function normally. However I did notice that when you press a two of the slave switches the certain lights would flicker in a certain location. Any rough ideas on what it could be would be appreciated.
Many thanks!

 

[ashrow]

need to know make etc of switches, there are so many

 

[PEG]

Also,what type of light fittings,and system function,or how it should function.

 

[static zap]

(Is it automatically timed / over ridden by dusk sensors)