Clones (and variables) didn't work right unless using visible stepping

[lounsen]

I try to build a tunnel using clones.
I found that the variables did't change according to code sequence.
I am using Chrome on M1 chip Mac.
clones_problem.xml.zip

[DarDoro]

It's not a real Snap issue but rather a misunderstanding of the clones and timings.
Ask for assistance at the https://forum.snap.berkeley.edu/t/clones-problem/18155