Signal indicator is yellow.

 

Why would an indicator for a signal be yellow and trades are not being copied.

Algo Trading is enabled.
All 4 boxes are checked under Options > Signal

The signal provider has made a few trades but Im not getting any.

 
Boomerang102:

Why would an indicator for a signal be yellow and trades are not being copied.

Algo Trading is enabled.
All 4 boxes are checked under Options > Signal

The signal provider has made a few trades but Im not getting any.

Auto Trading button has nothing to do with copying a signal.

Make sure you've done everything as described here:

How to Subscribe to MT4/MT5 Signal

https://www.mql5.com/en/forum/189731  (MT4)

https://www.mql5.com/en/forum/336422  (MT5)