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Cura 3.4 no support generated on first layer

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I'm a product design intern and use Cura professionally. I'm currently working on a new product and have had several successful prints of this part but after I updated to cura 3.4.0, the parts are failing. When I look at the sliced model in Cura, there is no first layer for the support I need for the part. Now the support lines ALWAYS pulling up. Why is the support not starting on the first layer? Seems like that would be a requirement in order to get a good print. How do I fix this or should I downgrade to a previous version of Cura?

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I can confirm this finding. There is no support generated on the first layer for objects like a hollow half sphere. It can't be the multiplied layer height of the support as the first support appears on layer 3 for build material layer height 0.1mm and support layer height 0.2mm.

However, there is a workaround: disable the option "brim only on the outside" (so it also prints a brim on the inside) and then support is generated from the first layer on.

Edited by Dim3nsioneer

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