Hi
Some previous trigger a while ago used different ranges and had a similar problem.
Resolved it using:
and selections back price is greater than 1.43
and selections back price is less than 1.50
You will see I'm using the range in your example, with one tick less and one tick more.
Additionally your range low and high should match a valid tick increment, for example:
and selections back price is greater than 1.43
and selections back price is less than 2.24 <------ 2.23 is an invalid price as the tick increment here is 0.02