connectors dissapear when slicing => only when using multiple cut planes AND excluding parts

[paloss]

Description of the bug

Whats the problem: connectors added by slicer when plane cutting are visable in the model but dissapear after slicing

what did you expect: connecters still there after slicing

This ONLY happens when there is a first cut WITH connector, then another cut WITH connector AND 1 part excluded in the cutting plane. If any of these are different it works fine. Its very specific

It happend in my 3d model that i needed to split in 3 parts but i am able to recreate it with just adding "shapes" in slicer.

Project file & How to reproduce

Step 1: add 4 bloks, merge them and stack them as in the attached picture
step 2: make a low plane cut with 1 connector.
step 3: make a high plane cut with 1 top side apart, add a connector to the right big part
result=connector visable in the model => slice => connector is there

ctrl z, edit the cut, only right click the "floating" top part of the left square.
result=connector visable in the model => slice => connector gone.

IF you now go ctrl z again, edit the cut, switch from plug to dowel and hit cut it slicer crashes from time to time

blocks connector bug.zip

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

Versie 2.6.1+win64

Operating system

win 11 latest

Printer model

mk4

[YuSanka]

Thanks for your report. (SPE-1938)

[Steinar30]

Noticed the same issue today as well, it was reproducible in the same manner. Interestingly, when I oriented the connector to require supports, supports were generated correctly around the connector, but the connector was still not present in the output.

[bgyarfas]

I also noticed the crash when trying to use the dowel and right-clicking a part.

[lukasmatena]

The crash reported by @bgyarfas is fixed in 2.7.0-alpha1. The original issue will be tracked in #11487.