> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://eflifttracker.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Why is my velocity value missing for this rep?

If you see two dashes `--` in place of your velocity or power metrics, this means Lift Tracker did not get an accurate measurement for that rep.  Rather than give you incorrect data, we will filter out that rep.

![lifting screen showing a filtered rep](https://storage.crisp.chat/users/helpdesk/website/964a48cea2b34800/image_1b6d8gy.png)

You'll see these reps with the label `N/A` in the post-lift chart.

![post-set chart showing a filtered rep](https://storage.crisp.chat/users/helpdesk/website/964a48cea2b34800/image_khweaj.png)

If you're seeing a lot of filtered or missing reps, make sure the phone is [mounted to a sturdy surface](/en/article/what-kind-of-mount-should-i-use-zwaj9w/) and try [adjusting your camera angle](/en/article/how-should-i-angle-my-device-to-track-my-lifts-17n0rlu/).