Fixed Damage doesn't Roll

[Former user]

When trying to recreate the Unarmed Strike feat, I have it set up as shown below. However when trying to use the Fixed calculation for damage, it gives the error shown on right and doesn’t roll anything to the chat window. Regular rolls work fine as long as its at least 1 die being rolled (I tried 0d4 in the formula).

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[Kim Mantas]

Fixed in 2.6.6.