Your training with weapons allows you to use the mastery properties of two kinds of weapons of your choice with which you have proficiency, such as Daggers and Shortbows.
Whenever you finish a Long Rest, you can change the kinds of weapons you chose. For example, you could switch to using the mastery properties of Scimitars and Shortswords.
But the Character builder is missing this feature and thus Master properties are not noted on the character sheet.
You’ve probably selected the 2014 Rogue class. You’ll need to make sure Core Rules is enabled for that character, then remove your class and choose the 2024 one (under Core Rules) instead.
According to the Player's Handbook 2024, https://www.dndbeyond.com/sources/dnd/phb-2024/character-classes-continued#Level1RogueWeaponMastery
Rogues are granted
Your training with weapons allows you to use the mastery properties of two kinds of weapons of your choice with which you have proficiency, such as Daggers and Shortbows.
Whenever you finish a Long Rest, you can change the kinds of weapons you chose. For example, you could switch to using the mastery properties of Scimitars and Shortswords.
But the Character builder is missing this feature and thus Master properties are not noted on the character sheet.
You’ve probably selected the 2014 Rogue class. You’ll need to make sure Core Rules is enabled for that character, then remove your class and choose the 2024 one (under Core Rules) instead.
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