Also, if you touch the original value slightly, it also seems impossible to get it back to the synced value that was already there. This means that, while it's possible to drag the speed knob into an automation editor and get the exact value, it seems to be impossible to automate a change to a different tempo sync. The problem is that this value is almost always impossible to set exactly in the automation editor, even at 1600% zoom. This number is exact to four decimal places, and just a tiny change in it can cause the LFO to sound out of rhythm. When syncing to tempo, for example some fast paced drum and bass at ~170 bpm, and let's say to eighths, LMMS sets the value of the speed knob on the LFO to a very small number, let's say around 0.15-0.2. However, when I want to automate what tempo they should be synced to, I find myself in quite the pickle. I, and I suspect many others, like to use LFO controllers synced to tempo for making cool sounds, and this works just fine. I've been reading around some old and new posts on the forum, but still haven't found what I'm looking for.

Fl studio tempo automation