Until now the flurry of blows could not consider such "minutiae" such as one of the weapons being enchanted or mixing natural weapons within the mix with such feats that allow them to be added to the flurry.
By making the flurry of blows effectively just a two weapon fighting feat that affects only some weapons and giving to all natural weapons the character sheet layout of normal weapons it should be possible to show what happens when you gain feats that allow multiple attacks and/or what happens when you are able to mix them among other attacks via the proper feats.
The above is a direct quote from the Paizo faq. The flurry of blows has always been (in the "normal" non-unchained monk) equivalent to the two-weapon fighting, for all intents and purposes.
However [the two weapon fighting feat series does not stack with furry of blows], mostly because the flurry only affects unarmed strikes and monk weapons while the feats affect everything.
Until now the "two weapon fighting" has been shown in the character sheets as a series of "used as main hand or off hand, with a light weapon or not" etc. etc.
But this is not shown for the unarmed strike and natural weapons.
I would like to propose that the unarmed strike be considered as a weapon much like everything else and that the "flurry of blows bonus" be considered just a normal "two weapon fighting" only affecting those weapons that gain an advantage from it.
Moreover i would propose for the other kinds of natural weapons to have a similar layout so normal weapons, so that the player knows what happens when he mixes them with other attacks, or what happens when he gains the proper feats that allow them to be part of a series of attacks. (most probably just a flag that would be showing a dash if a feat affecting natural weapons is not present, so that the player knows he does not have that option or the proper values if the player has the option)
This is not exactly part of just the character sheet bugs but is being put in the Data because i think most of the work needs to be done at the data level before the character sheet side of the implementation can work.
Microsoft Windows [Version 10.0.17763.195]
java version "11.0.1" 2018-10-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)