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Vias with thermal connectivity on cross hatched shape

Dziner

Everyone,

I had converted one of a solid dynamic shape to cross hatched and I see some vias has created a thermal connectivity to the shape (of course, Its a same net) and some are not.
None of these vias had thermal spokes earlier when the shape was dynamic, I even added "DYN_THERMAL_CON_TYPE = FULL_CONTACT" property and the thermal spokes are still persist.
I also noticed the spokes goes off when you move a from its current location... Any idea why this happens.

Thanks!

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