# New electric engine

**URL:** https://discourse.shapr3d.com/t/new-electric-engine/17189
**Category:** Modeling Questions
**Created:** [February 3, 2022, 6:02am UTC](https://discourse.shapr3d.com/t/new-electric-engine/17189 "2022-02-03T06:02:51Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Byte2600](https://avatars.discourse-cdn.com/v4/letter/b/c57346/32.png) [@Byte2600](https://discourse.shapr3d.com/u/Byte2600)
#### Post date: [February 3, 2022, 6:02am UTC](https://discourse.shapr3d.com/t/new-electric-engine/17189/1 "2022-02-03T06:02:51Z")

</div>

I keep having issues where all my sketches and bodies become invisible. It keepers happening after lots of work. I just get to the new Types of compression that I have an idea about how to accomplishand after modeling the tubing and it just becomes unusable. Any fixes available? It is getting very old. I back them up but still an hour to an hour and a half missing.