# Union & Subtract Tools Acting Up After Latest Update
**URL:** https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392
**Category:** Modeling Questions
**Created:** [February 5, 2025, 1:56pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392 "2025-02-05T13:56:33Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@brunowerneck](https://discourse.shapr3d.com/u/brunowerneck)
#### Post date: [February 5, 2025, 1:56pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392/1 "2025-02-05T13:56:33Z")
Since the latest update, the Union and Subtract tools have been behaving strangely. Hidden edges are showing up, but selection seems to prioritize objects behind others or far in the back. At the same time, some objects are completely hidden, making them impossible to select.
Anyone else running into this?
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### Author:  [@SCALEMODEL](https://discourse.shapr3d.com/u/SCALEMODEL)
#### Post date: [February 5, 2025, 9:03pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392/2 "2025-02-05T21:03:55Z")
For me only Subtract shows hidden lines.
Union and Intersect does not show hidden lines.
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### Author:  [@arroniow](https://discourse.shapr3d.com/u/arroniow)
#### Post date: [February 5, 2025, 10:03pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392/3 "2025-02-05T22:03:05Z")
I think I like it.
Union is displaying the bodies (solid).
Subtract and Intersect have been made more obvious in displaying what the end result will be.
I like the transparent effect with the Pink and Blue.
I have never tried clicking on the symbols before, you can change which is which.
I now can’t remember what it was like two days ago, (memory club here I come).
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### Author:  [@Lys](https://discourse.shapr3d.com/u/Lys)
#### Post date: [February 11, 2025, 3:11pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392/4 "2025-02-11T15:11:33Z")
This behavior is intentional and was introduced to improve visibility on the selected items during Union and Subtract operations. The goal is to make it clearer which bodies are affected, ensuring a more intuitive workflow.
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### Author:  [@arroniow](https://discourse.shapr3d.com/u/arroniow)
#### Post date: [February 11, 2025, 3:14pm UTC](https://discourse.shapr3d.com/t/union-subtract-tools-acting-up-after-latest-update/36392/5 "2025-02-11T15:14:48Z")
Thumbs up from me.
It is notably more intuitive as to what the outcome will be when performing Boolean operations, thanks.