This is though really tricky to fix - especially as the code will need to be generic for all cases as any executable could have a path as an argument. I will have to look into this a bit more to see whether it is solvable in an easy manner.
A workaround for you at this point would be to enable "Use primary selection" in Preferences. This way instant paste will also work with Terminator app.
Thanks for the bug report.
This is though really tricky to fix - especially as the code will need to be generic for all cases as any executable could have a path as an argument. I will have to look into this a bit more to see whether it is solvable in an easy manner.
A workaround for you at this point would be to enable "Use primary selection" in Preferences. This way instant paste will also work with Terminator app.