Using the dir attribute in the particle mechanic causes some particles to not appear
Some particles will not appear when the dir attribute is used on the particle mechanic. For example, using reddust in the following code will cause the reddust to not appear:
- effect:particles{p=reddust;a=10;d=true;dir=0,0.1,0;s=1} @self
However, if we replace this with flame particles instead, the particle will appear.
- effect:particles{p=flame;a=10;d=true;dir=0,0.1,0;s=1} @self
Effect of this second line of code is shown in the screenshots added to this.