This is a continued issue from another post I make a few weeks ago.
Link here -> https://answers.popcornfx.com/2303/particles-at-high-speed-moving-abnormally
This was fixed... Until we updated PopcornFX. This being from 1.4 to 1.6 for the plugin and 1.11 to 1.12 for the editor. UE4 has stayed at v4.16.
Note: The issue of the flames being moved forward is worse now as they fire further than in the previous issue.
Thank Hope you guys can help, any images required let me know.