Even though relatively new to houdini I am not sure if this problem would be easy to resolve. I am trying to recreate fractal noise, but with a 1D line first. This is simply generating random curve and with the loop at the end every iteration it adds to it another curve with different seed, amplitude half the one before, and frequency twice as big than the one before. All of it it is working except the very last avop that is supposed to add one curve to the feedback of the loop. If I put any of the two curves into the second, third or fourth input of the avop and get them with a Get Attribute they are changed and cut in a way I've never seen before. I did the same setup, just with sine waves, and it works perfectly and you could try it to see what am I trying to make.
If anyone knows a different solution to add them together or if you know using vex might work I would appreciate your help as it is my first time posting here.