Right. I surmise that your example is in 2/2. Unfortunately 2/2 isn’t well-handled by the Notation Options. My opinion(!) is that basically 3/2, 4/2, 5/2 etc. should be handled with one set of rules, and that 2/2 should be handled separately, basically the same way that 4/4 is handled - most 2/2 historically seems to be beamed and grouped as though it’s 4/4. Anyway, my feeling is that 2/2 is missing some settings (along with x/2 time signatures that don’t have a half bar, various compound meters etc.), and I know I’m not alone in hoping that they’re addressed in a future version of Dorico.
In the meantime, the only rule that helps you here is reducing the maximum allowable number of dots in simple time signatures from 2 to 1.
It’s somewhat fortuitous that today I thought of a new trick for persuading 2/2 to work like 4/4 (or rather, to persuade what is actually a 4/4 time signature to display as 2/2) - see A workaround for persuading Dorico 3.5 to beam/group 2/2 like 4/4