If you play with unearthed arcana together with synergies and you have unearthed arcana set at a higher priority than synergies, you no longer have the ability to use the 3 pages of your character's inventory, the button to switch between them has been overwritten but that in itself isnt the most annoying part. The most annoying part is that your character will still pick up items if the first standard page of the inventory is full, you just cannot access it. This is only related to the latest version of unearthed arcana, was released yesterday i believe.
I do not have an account at the runic games forum so if someone who reads this, could you let the mod maker aware of this issues please.
PS. For the past 2 releases of unearthed arcana, the Trader in the starting camp is no longer there, it's being overwritten by unearthed arcana.