# Serious altitude problems using latest master 1.6.0 with LPE

**URL:** <https://discuss.px4.io/t/serious-altitude-problems-using-latest-master-1-6-0-with-lpe/2350>\
**Category:** Flight Testing & Log Analysis\
**Created:** [February 3, 2017, 9:24am UTC](https://discuss.px4.io/t/serious-altitude-problems-using-latest-master-1-6-0-with-lpe/2350 "2017-02-03T09:24:52Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Mzahana](https://discuss.px4.io/user_avatar/discuss.px4.io/mzahana/32/3790_2.png) [@Mzahana](https://discuss.px4.io/u/Mzahana)\
**Post date:** [April 17, 2017, 8:59pm UTC](https://discuss.px4.io/t/serious-altitude-problems-using-latest-master-1-6-0-with-lpe/2350/14 "2017-04-17T20:59:34Z")

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@deksprime I used stable version 1.5.5 with LPE, and got the same issue. I guess, you have not got unlucky yet 😄

Today, I had similar problem. I was not able to bring the copter down in Altitude hold mode, even by pulling the throttle stick all the way down. I had to switch to Manual mode in order to bring it down.

A discussion for this is [here](http://discuss.px4.io/t/altitude-estimation-control-issue-in-v1-6-0/3045)

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