I suspect that you have invested in a property fund within the range of Hibernian funds.
The Hibernian Property Fund had a once off reduction in value of 4.7% (9.4% for the geared version) back in July. This is somewhat artificial and is designed to deter people withdrawing their money. When the funds inflows and outflows match each other, this artificial reduction will be removed.
It also has an early exit penalty of around 4% this year.
So if you don't need the money, you should stay in it.
You should ask the broker to explain why he recommended this fund. If you feel that you were misled, you should complain. And if you don't get a satisfactory response, go to the Ombudsman.
Brendan