Same as Nelo's post
Thanks for the screenshot.
1. You are using a brush "Transparent (something or other)" have a look in the brushes dock and change from that (1) to a more regular brush. For the clone tool one of the fuzzy brushes is a good bet (2)
2. I can see problems ahead with the brush dynamics
Change the Pressure Opacity setting to Dynamics OFF (3)
Why does this happen after you have reset everything and even reinstalled Gimp ?
3. That only looks like a selection. It is not a selection.
4. Gimp keeps the last settings used in your Gimp user profile C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\ which remains between installation. Which is why reinstalling rarely fixes any problems.
5. You can delete that brush, right click on it delete brush.
Thanks for the screenshot.
1. You are using a brush "Transparent (something or other)" have a look in the brushes dock and change from that (1) to a more regular brush. For the clone tool one of the fuzzy brushes is a good bet (2)
2. I can see problems ahead with the brush dynamics
Change the Pressure Opacity setting to Dynamics OFF (3)Why does this happen after you have reset everything and even reinstalled Gimp ?
3. That only looks like a selection. It is not a selection.
4. Gimp keeps the last settings used in your Gimp user profile C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\ which remains between installation. Which is why reinstalling rarely fixes any problems.
5. You can delete that brush, right click on it delete brush.