Have you tried 13.0.4?
yes, 13.04 is same, no change.
13.01 is ok. but do not support ritina well enough.
expecting 13.05 will fix this bug.
Perhaps you ought to describe what it's doing (wrong) for you in some detail.
I'm able to use Image - Adjust - Threshold, recorded in an action, no problem. Unfortunately I have only access to 13.0.1 because I have a perpetual license. Is it something new you've seen happen only in recent updates?
I'm having an issue too in 13.0.4 with Threshold as an action.
If I add a Threshold Adjustment Layer manually in the Layers Tab it will pop up in the Properties Tab and will work as expected.
If I add a Threshold Adjustment Layer in the Action Tab as a new action and toggle dialog on, the action will run, the dialog will pop up in a separate box (as opposed to the Properties Tab), but if you drag the slider to the left, add a sample color point (shift click for #1) and move the slider right (with the intention of adding another sample point #2, the original point #1 will often disappear. In previous versions, the #1 point would persist while dragging the slider.
i'm having the exact same problem. have you found a solution yet? running 13.1.2 x64
really need to figure this out as it presents a majour detour in my everyday workflow.