I ran a test with the same settings as you using a TSL trigger of 15 pips and a pip step of 9 pips and the trade moved its stop loss to roughly 9 pips behind the price as shown below.
These are the steps I followed:
- Set the cBot parameters and started it.
- Opened a sell trade with a 10 pip stop loss.
- When the price gained 15 pips the stop loss moved 9 pips behind the price.
- The stop loss continued to gain pips stepping behind price as the price moved further in favour.
Please note that you need an initial stop loss for the TSL to work.
make sure you have no other cBots running that may be adjusting your trades.