Pacifica effect on 0.15.0-b5 shows a flicker that wasn't present in 0.14.4

[KEANO89]

What happened?

0.15.0-b5 (didn't check other betas yet) produces a sort of irregular but frequent flicker when the pacifica effect is selected (regardless of palette or brightness or level shifter) but other effects were not affected in my quick testing. Reverting back to 0.14.4 fixes the issue without hardware changes.

To Reproduce Bug

Use 0.15.0 beta and select the effect "Pacifica"

Hardware (in case it's relevant - didn't check other configurations yet): esp32 (powered from the same 24v source but obv stepped down to 5v), bft rgbw 24v strip, level shifter from 3.3 to 5 on the data line

Expected Behavior

Same as in 0.14.4 or earlier versions

Install Method

Binary from WLED.me

What version of WLED?

0.15.0-b5

Which microcontroller/board are you seeing the problem on?

ESP32

Relevant log/trace output

No response

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[blazoncek]

Can you post a video depicting the issue? I am unable to reproduce.

[KEANO89]

Courtesy of ALDIY.
I'm going to record a video of the glitch on my hardware later today once I've untangled my testing mess setup

[DedeHai]

I do see it on my C3, there is periodic brightness jumps. Bug was introduced in 68a7282

[DedeHai]

reverting

WLED/wled00/FX.cpp

Line 4034 in ba636b1

unsigned sCIStart1 = SEGENV.aux0, sCIStart2 = SEGENV.aux1, sCIStart3 = SEGENV.step, sCIStart4 = SEGENV.step >> 16;

back to uint16_t solves it.