Blinking Ellipse from wfs with opacity settings

i am trying to use an ellipse from wfs and with the opacity settings make it blink if the battery is charging and not show when it isn’t. it works as intended in the view window, but when it’s on the watch it doesn’t blink, it just gets stuck in the “off” position.

when i use the same trick for blinking ellipses in the time separating the hours and minutes this works fine, but it is masking text.
when i replaced the wfs ellipse with an image and copy and pasted the same code then it works as intended on the watch as well.

rectangles work fine using this technique, it only seems to happen with the ellipses.

has anyone else come across this, or am i unique?

Could you please create a support request with a sample app? Seems this is a bug.