I have an older TF, which has always been a little less sturdy than the newer eventide pedals I've bought. Since the newest update, when I change between presets, it makes loud oscillation sounds as if all the knobs go to 100% for a second before the change. It only happens when switching between certain algorithms, but when it happens, it's VERY obnoxious and distracting.
I tried turning Spill mode off, but then I could hear the delay times changing between presets, which is also not very useful.
Like I mentioned, it's not the most rugged pedal and it might just be broken, but if there's any way to fix it please let me know.
I had some freaky-deaky problems with an older timefactor right after the latest software upgrade.. Resetting made no difference. Out of exasperation, I reloaded the software. The problem then disappeared for me. It might be worth a try …..