# CURA - Adding Layer over Opening - Bug

**URL:** <https://forum.lulzbot.com/t/cura-adding-layer-over-opening-bug/4649>\
**Category:** Software\
**Created:** [March 6, 2017, 11:58pm UTC](https://forum.lulzbot.com/t/cura-adding-layer-over-opening-bug/4649 "2017-03-06T23:58:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![joshea](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/joshea/32/10277_2.png) [@joshea](https://forum.lulzbot.com/u/joshea)\
**Post date:** [March 6, 2017, 11:58pm UTC](https://forum.lulzbot.com/t/cura-adding-layer-over-opening-bug/4649/1 "2017-03-06T23:58:48Z")

</div>

Okay guys I am seeing some weird results with Cura (20.01 and latest).

I have a model I have sliced apart, and added holes in for alignment pins. In EVERY editor, including CURA I see this opening honored. However, when I switch to g-code viewer, the first layer, shows a layer of filament, covering over this whole. Here are photos of what I am talking about.

What the heck is going on? I know the models are considered “damaged” as I sliced them up with Netfabb and reassembled in Blender

(Notice the model is flipped)

![](https://lh3.googleusercontent.com/ca7jKozxVEKmKwMDDCKdySxbhDKxNCeMovR_Nm8aKmHCqxXTG82TumV9b-SOBXaQdEZEjFNiM8oDxpO9S1iCe0r9zi6d4h15w4HqTAzWr4wy5BEfS_vGi-Lud3-9q6Wl7R1D-jpwCGCdSylCMQcpwigV8vsP5LQ6ys3BWOd3kfsLlFpxhCH-8m2E_ZvCAeMrNCfPNAIvdIS0ZIwh0MO1OJdpUZLB-vh9Qeg7tcaCj7Z8pd0V03DFCJHTnRuYqbW0GhWnLrH_ohFqTrkFEz08G03tvuLm8AD5h7aJ7m1ukvh0KR2nZ7-rb6bgekxZ0GvWPzua2UZ1mhsi35s2ThRpapDMyCAS0bFNWACaDVF0fsWsomRqhJXvdtGaWhLkO3OkL-b_Wl8gszYZYIp0oGfK6EXqKxVEEQ_AgbiiDQJlXmRvxWwpdeMetABeA-IevtAoljUZCgUXuf06XykBG8g-AdXW22XYrCgzumu-wPNs5tkOJ0EkweWNQ13LNvQnuC20xh0FaV1iUmVqCZEPT6QMnAdgJ_cGMPI6Uff6jrTtCI6l3gzhre_DGI-B6JXBFIywKT2_pOvJR3RucsO5QUjKkurqu9w6JuWu26AuRsIrUSjvLbIz3POi=w1048-h860-no)

![](https://lh3.googleusercontent.com/SOPmxLkQnXhxy_LNNmAzDHy6LqB-KPtLa2AIFC4WQf_uNJn7jHrU_hKoXMRjgQIMDTgsGtaz29kNSZjORew-Mjgo5sJLfKFBGjIh-NaWDg0FxCtxYQ-KFGsasLR-MddxGTMCwk4-p-_FRu3CQiN1MAozPcyl3sG-_sDA-hKf059Ky3XF1yhejMVGkiMPcOyck-OYFHfnYDs3wZ5VqIi0hD8dDz2658hBA0yr-96osqZun9IB3c6YdL4loUTd9WCofeG45Ir_falPvPA84nHnsUxA87k3sQlLgEitygY8UaJQy5EW0h_Rhr0BhdOCvJvIT2SQd1DePfW3m15wM1-noqRZkdyNkagv4kg4YBL8P9miamuClBxrcFIcd0ISqVAFK0pwm0KwO9bbm7mwH2AcmVR-MNXWZcxa20ULiHJPEcG46MOkQMqv-7bjOLzoH10LznrlC9JEI036E6yW6nYGSy3xHc0ptAYXQLp_hngV_U04E7BsoSr3gegTGvZYhFnC871F3FabpQeKZTXtVuBs1_3SACdvRqEg2bYP013ffcSnIxnx00rDw3ffBfMGUcj7SWB2WIWJHaUmXaEFWJ-3gl2yhh2jFKUiXQyi3pIffyy11Iyq571C=w863-h860-no)