THIS STORYBOARD
THAT'S AWESOME
Good use of the scripting language
Anyway I'm here to explain the situation of the 1/16 and why it's such a problem.
Basically the game has a few different ways it resets your combo counter (a full combo break).
They are as follows...
1. Failing to hit a circle.
2. Failing to start a slider.
3. Failing to spin a spinner enough before it finishes.
4. Failing to complete a slider tick
5. Failing to complete a slider's repeat.
The fifth one is the problem here, failing to complete a repeat.
1/16 sliders are so very fast, that often times the slider has already hit a repeat before the player has clicked on it.
Even though the player did not miss the start of the slider, they DID miss the repeat, causing a combo-break.
This means that if you hit a 1/16 slider later than usual, it is very likely that you are going to break.
For the sake of convenience, let's assume that you can click on a slider... oh, 100 ms before and after you should, and it'll complete properly.
Your hitwindow here is something like 100 before, 100 after.
However, if a slider length is shorter than that hitwindow, it changes.
In this map, 1/16 has a length of 22 ms, so the real hitwindow is something like 100 before, 22 after.
This means that these short sliders are easier to hit if you click earlier than you normally would.
Because of this glitch, 1/16 sliders are extremely easy to break on unfairly, which is why it's usually not a good idea to use them.
Sliders that are above 40 ms long are usually unnoticeable. When you get down to 30 and 20 ms, then you really start to notice the unfair breaks.
So yeah, my recommendation is to change the 1/16 to something longer, like 1/12 (28 ms) or 1/8 (43 ms). It might not sound exactly the way you want but it'll be a ton easier to play.