Tamron 35-150 - Vignette

Hi,

I use a Tamron 35-150mm Lens and I noticed the following issue. As soon I zoom above 100mm and use the lens correction from Lightroom, my image get a black circle. Well, it starts with a normal vignette, then I use the Lightroom correction, an then the 4 corners get slightly brighter as the rest of the image - means: corners are bright and then the image gets darker (Vignette) and then brighter again .... - visual a black circle inside of the image. See this issue the first time. Especially images at the beach, where everything is bright. Is this a Lightroom issue with poor correction of the lens ? I use the Sony 7 IV camera.

Any idea why I have this issue ? See the small images below the main image.