FX problem after updating a cue

I have an pan FX with low speed and small size (like 2bpm, 3 degrees)
After updating something (like a desk channel intensity) to the cue the effect does not run smoothly anymore.

The cue I'm updating has the FX as tracked information.
If I run the cue what is the source of FX and then the cues with tracked information, it runs smoothly again.
Also if I suck the FX to the programmer from the cue, it runs smoothly.

I haven't tried what happens if the FX is recorded as hard values.

But it seems the console has problems asserting the cue with tracked FX after updating.
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