The Blinking cursor typewriter console effect stops blinking

[JonxUNL]

After applying the effect to a text layer and removing the animation slider keyframes, the blinking effect stops disappears.

The workaround would be to leave a single keyframe at 100.

Reason I want to remove the keyframes is to add an opacity fade on as opposed to typed on and keeping the blinking cursor.

Is this a glitch or intended?

[Airweb_AE]

Yes, you need at least one keyframe on the Animation slider, otherwise it generates an error.

You can add a cursor to your text using this expression on the source text property:

i = effect("interval")(1);
t = timeToFrames(time) % (i * 2);
t < i ? value + '_' : value // you can replace the underscore with any symbol

1. create a text a layer
2. add a slider control and name it interval
3. add the expression to the source text property