to understand it - is the problem that it should be a loop? Or is it that over time all the semi-transparent parts become completly transparent and the result looks not soft? By the way, from start to midway it looks interesting! Would it be a solution to simply make the duration of the flame animation so long that you do not end in the status where there is still enough detail? That is just a workaround, but maybe a solution. To be honest, i have never done this type of material animation. I only wanted to help you making your problem more clear for others. Hope there is a solution, Walther

One day your ship comes in - but you're at the airport.