Train 18 - तेरी प्यारी प्यारी Livery को किसी की नज़र न लगे

Bug:
I see that the system is not able to search connections where more than two trains are involved.
Ex:
I tried to search All trains from YPR - UAM. It says
"Sorry....
more...

No trains found.
All Train Departures From Bangalore Yesvantpur Junction
All Train Arrivals at Udagamandalam
Do you have a ΣChain suggestion? Click here to create a ΣChain.
"
But When I try to create one, it says,
"ΣChain already exists. Chain# 8373; Σ Bangalore - Ooty ΣChain"
Same is the case with Chain# 7282. When I search for return train from UAM to SBC....it says no trains available. Where as when I create one it says Chain 7282 already exists.
Also I created chains with more than one transfers, and all of them are not searchable.