Date/time in weatherplans was changed in Pure so I had to update the weatherplan. Furthermore, in recent CSP-versions the wetness/spray levels were changed causing the weatherplan not being accurate any more. That's fixed now.
v2 must be used with Pure v0.203+ and Pure Planner. Download and unpack the json-file in C:\Program Files (x86)\Steam\steamapps\common\assettocorsa\extension\config-ext\PurePlanner\Plans\Stamp and import in Pure Planner app or assign in session Weather-pulldown.