I'm noticing that Action Surge and Dash are no longer allowing me to move after activating them.

I'm playing in the Shattered Sanctum, and things were working fine until I became level 4. Now, when trying to Dash or Action surge, I find I cannot move, which was not the case prior to leveling up. During the level up process, I accepted defaults for Astarion and Lae'zel, For my own character (a wizard) and Shadowheart, I altered the Ability Increase feats so they would put 18 in INT and WIS respectively, giving them both an extra 2nd level spell (I'm not fully certain that is all I should get, but okay for now). Now, however, none of my characters can Dash and Lae'zel cannot action surge.

The only other strategic change I've done before this issue came up is I used "Jump/Disengage" a couple times to escape a monster attack of opportunity while trying to attack a different monster.