Why is the MT4 optimizer lying to me? (on multiple terminals)

[SOLVED]
Why would the MT4 optimizer give different results from the backtester?

When I run the optimizer it sometimes gives me a set of results that do not match up with the results I get when I run the individual backtests.
This happens whether i click from the optimizer results or i manually enter them.

I have tried this with multiple terminals. The common denominator is that i am using Tickstory data on both,and they are both running in portable mode. Could either of these be related to the problem?

Looks like i may have found the culprit. Sharing my fix here, in case anyone faces this in the future.

The combination of these things worked

1. Take terminal offline and set manual spread (apparently broker prices over the weekends mess things up)
2. If your code happens to set an invalid stop (for whatever reason), the backtester doesn't mind, but the optimizer doesn't like it, and will report 0 trades and profit.

Good luck.

never had this issue til now but thank you will bear this in mind