Running into watchdog crash

[iTacco]

Hello,

first of all, I really like your work on this repository.
But I found a problem. Sometimes if you switch from any pattern to "sinelon(8)" the ESP crashes with following report:
Guru Meditation Error: Core 1 panic'ed (Unhandled debug exception) Debug exception reason: Stack canary watchpoint triggered [...]. The report goes further a bit.

In most cases the crash happens by switching from pattern 4 "water" to pattern 8 "sinelon".

It could be workarounded by disabling pattern 8 but maybe you know why this is happening.

Update:
I tested it with two LEDs before. Now increased to four LEDs and it's working now. Don't know. I still think there is something not okay but atleast it works now.