simple blockly does not run ok

[gert3d]

I use a simple switch (Left01) to switch ON and OFF a KAKU.
See my Blockly in the attched file. Most of it works OK, except the KAKU only switches OFF, never ON
Why is that?
Thanks

blocky01.jpg (23.82 KiB) Viewed 675 times

[tozzke]

Nested (an if in an if) if's don't work, so you'll have to change it to:

[gert3d]

Thanks for the reply. This worked indeed, although I had to switch OFF the Left01 without delay, otherwise the KAKU was going ON and OFF repeatedly.
I am using version 3.8153 on a Synology.