I am not currently playing Taiko, but when I go back to SS farming in Taiko, I plan on just using the unlimited frame limiter. In my opinion now, I feel that being able to get high accuracy easier is more important than automatically knowing whether or not I hit the big note correctly. Also, it's not like this bug makes it impossible to get the score from the big notes, it is just harder for the game to recognize it as a correctly hit big note. Despite that, I am still going to stay updated on this issue in order to help the osu! staff be able to fix it. I am also still going to post about new findings and information about this bug, which is what this post is really about.
This issue is actually more widespread than I once thought. According to n1doking, "it seems to depend on keyboards and frame limit." We already knew about frame limiters, but what is says about keyboards is new to me, "keyboards for how they send keypresses to computer to osu."
nidoking uses unlimited frame limiter, but he says that he doesn't currently have this problem. Although, when he uses a Razer Blackwidow keyboard, he says that the game only recognizes the big notes about half of the time.
So, now we know that, for n1doking, unlimited frame limiter combined with the Razer Blackwidow keyboard makes it harder, but not impossible, for the game to recognize big notes. I use the SteelSeries 6G v2 USB Mechanical Keyboard with Cherry MX Red switches and when I combine that with the unlimited frame limiter, it is practically impossible for the game to recognize big note hits.
If you are experiencing this issue in any way, it would be very helpful if you could make a post in this thread stating the type of keyboard that you are using, and how similar your experiences are to what has been described in this post and/or to what n1doking has said about his experience with the Razer Blackwidow keyboard.
Writing this post will hopefully do two things. First, it might be able to provide some needed information to the osu! staff. Second, we can start putting some focus onto keyboards in this forum thread.
Thank you for reading my post!