@Philip - Welcome to the community. I went back to that level but since I finished it the first time, it is gold and I can't see whether it was supposed to be a mixed level or not. However my choice of boosters doesn't include the coconut wheel and does include fish which does indicate it should be a mixed level. That shouldn't affect you playing it but you are correct that it is labeled wrong. I am tagging the Community Moderator @Jelly Jenny to let her know. It may take awhile to be changed (she is currently on vacation), but as long as it doesn't affect your playing the level (no jelly to get rid of - just get 2 fruit), the delay shouldn't affect anyone's playing. Thank you for bringing it to our attention.
I played Hard Level 3078 last August 29, 2018. Don't worry about it, this must have been an oversight. I noticed that too but I didn't make a big deal out of it and just ignored it because the Goal of this level is to only Collect Ingredients of 2 Hazelnuts in 18 Moves in mine, compared to the latest change on yours of 21 Moves. This was also close to the level where they eliminated Mr. Toffee sliding with the Descriptions of the Goal the players need to carry out. He was replaced by Yeti on Level 3081. Below are the videos.
Hope this answer your questions and concerns! Please let us know if you need more assistance!
In addition to my statement above, as you move up closer to Level 4000, the game won't have anymore descriptions sliding across the screen since players are very much familiar with the Goals to accomplish from the previous lower levels.