Using spawnParticle with REDSTONE and DustOptions will result in spawning a particle with random colors

p.spawnParticle(Particle.REDSTONE, p.getLocation().add(0, 2, 0), 4, new Particle.DustOptions(Color.AQUA, 4));

Step to reproduce: run the method spawnParticle multiple times with the same options.
Result:

Code (pastebin): https://pastebin.com/HFuD9qRN

Code (source/jar): Test.jar Test.zip

^{Bug reports which do not 1) contain a declaration of testing in Vanilla and without plugins, or 2) in the case of plugin API bugs, contain a minimal reproduction case (source + jar please) will be closed. Bug reports must contain step by step instructions to reproduce the bug from a clean server install with no assumptions or prior knowledge. Also make sure you include the full output of /version in your report. Please copy and paste this statement to the bottom of your report to indicate that you have read and understood it.}