Someone with more experience will pipe in soon, but I do know sheetcam is going to cut on the line on open lines. They are shown by white lines. I use Fusion, but I ran into that with sheetcam early on. Most likely small gaps in the file.
I would check that 2t/4t switch again. Make sure the switch is in the middle position. That is really the only reason it would be cutting on the rapids.
Do you have a hand torch? If so, pull the trigger and let it go. It should fire when the trigger is pulled and shut off when you release it. If that doesn’t happen, your 2t/4t switch is not working correctly. You can also do this with the manual torch fire in Firecontrol.
Firecontrol only executes the commands in the code, so if the code doesn’t say to turn the torch on for the rapids, its not a computer issue.
Open the cut file with Notepad and copy and paste a couple of cut loops from the code.