# Crash : Random Assertion Failed (render\_mob) - Anything to do?

**URL:** <https://discourse.stonehearth.net/t/crash-random-assertion-failed-render-mob-anything-to-do/40822>\
**Category:** Crash Reports\
**Created:** [April 8, 2020, 12:03pm UTC](https://discourse.stonehearth.net/t/crash-random-assertion-failed-render-mob-anything-to-do/40822 "2020-04-08T12:03:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Drazur](https://avatars.discourse-cdn.com/v4/letter/d/258eb7/32.png) [@Drazur](https://discourse.stonehearth.net/u/Drazur)\
**Post date:** [April 8, 2020, 12:03pm UTC](https://discourse.stonehearth.net/t/crash-random-assertion-failed-render-mob-anything-to-do/40822/1 "2020-04-08T12:03:47Z")

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**Summary:**

Random crashing when playing. Seems to occur while editing custom buildings.  
Sometimes occurs after 5mn in game, sometimes after 2h

Always the same pop up :

> Assertion Failed: \_current.position == \_current.position(C:\rb\ihome\root\SH-OB0-BUILD\stonehearth\source\client\renderer\render\_mob.cpp:108)

Is it because sometimes mobs can’t reach me ? They’re stuck on hills until I build a ladder.

This is being gamebreaking ☹

**Stonehearth.log:**

…

2020-04-08 12:59:20.688666 | server | 1 | ai.execution\_frame | (638823 Tippy Framer) [stonehearth:get\_food] (638823 Tippy Framer) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:20.737536 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:21.813753 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.079647 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.207318 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.293116 | server | 1 | ai.execution\_frame | (5355827 Liam Lessel) [stonehearth:get\_food] (5355827 Liam Lessel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.332013 | server | 1 | ai.execution\_frame | (5355827 Liam Lessel) [stonehearth:get\_food] (5355827 Liam Lessel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.389864 | server | 1 | ai.execution\_frame | (5355827 Liam Lessel) [stonehearth:get\_food] (5355827 Liam Lessel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.598162 | server | 1 | ai.execution\_frame | (5355827 Liam Lessel) [stonehearth:get\_food] (5355827 Liam Lessel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:22.704876 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:23.355138 | server | 1 | ai.execution\_frame | (6383 Iris Nelvin) [stonehearth:get\_food] (6383 Iris Nelvin) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:23.423435 | server | 1 | ai.execution\_frame | (6383 Iris Nelvin) [stonehearth:get\_food] (6383 Iris Nelvin) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:23.480284 | server | 1 | ai.execution\_frame | (6383 Iris Nelvin) [stonehearth:get\_food] (6383 Iris Nelvin) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:23.634285 | server | 1 | ai.execution\_frame | (6383 Iris Nelvin) [stonehearth:get\_food] (6383 Iris Nelvin) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
**2020-04-08 12:59:25.907859 | client | 0 | app | Assertion Failed: \_current.position == \_current.position(C:\rb\ihome\root\SH-OB0-BUILD\stonehearth\source\client\renderer\render\_mob.cpp:108)**  
2020-04-08 12:59:26.912633 | server | 1 | simulation.remote\_client | started buffering client updates. (seq:19706 ack:19686)  
2020-04-08 12:59:28.321137 | server | 1 | ai.execution\_frame | (8338694 Selvan Dorril) [stonehearth:get\_food] (8338694 Selvan Dorril) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:28.363113 | server | 1 | ai.execution\_frame | (8338694 Selvan Dorril) [stonehearth:get\_food] (8338694 Selvan Dorril) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:28.367168 | server | 1 | ai.execution\_frame | (8338694 Selvan Dorril) [stonehearth:get\_food] (8338694 Selvan Dorril) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:29.620985 | server | 1 | ai.execution\_frame | (4438018 Tulip Inverse) [stonehearth:get\_food] (4438018 Tulip Inverse) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:29.667505 | server | 1 | ai.execution\_frame | (4438018 Tulip Inverse) [stonehearth:get\_food] (4438018 Tulip Inverse) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:29.670501 | server | 1 | ai.execution\_frame | (4438018 Tulip Inverse) [stonehearth:get\_food] (4438018 Tulip Inverse) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:30.690730 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:30.732963 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:30.733960 | server | 1 | ai.execution\_frame | (7183 Alaina Mavel) [stonehearth:get\_food] (7183 Alaina Mavel) (stonehearth:get\_food) ignoring bad frame transition to “unit\_ready” from “finished”  
2020-04-08 12:59:35.348206 | server | 1 | mod stonehearth.inventory | Restock director stuck. Rebooting it…

**Attachments:**

no crash.dmp

**Versions and Mods:**

Last game version, no mods (never used any mod actually)

**System Information:**

W10 - Geforce RTX 2070 - 16GB RAM - Intel I7 8700 - External monitor

**Notes:**

Occurs on Forest biome with newplayers citizens  
Seems to occur when editing a custom building when reaching around 20-25 citizens  
Anything to prevent this from happening ? Like a mod or good practices ?

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**Author:** ![Moutron78](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.stonehearth.net/moutron78/32/71744_2.png) [@Moutron78](https://discourse.stonehearth.net/u/Moutron78)\
**Post date:** [September 17, 2023, 9:17am UTC](https://discourse.stonehearth.net/t/crash-random-assertion-failed-render-mob-anything-to-do/40822/2 "2023-09-17T09:17:16Z")

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I have the same issue, is there any way to prevent it ?