Global mean temperature constraint by target finder

[dengxp8]

I want to get the 1.5℃ target emission pathway by using the target-finder. So I set the policy target file temp_target_1p5.xml as the fig shows which set the overshoot year = 2100. As the results turned out, the global mean temperature still overshoot before 2100. As so, How can I find the 1.5℃ target emission pathway without overshoot?
temp_target_1p5.xml:

ModelInterface results:

config set:

Target-finder and config file:
Target-finder and config file.zip