# Simulation not responding

**URL:** <https://get-help.theconstruct.ai/t/simulation-not-responding/38939>\
**Category:** Linux for Robotics\
**Tags:** error\
**Created:** [November 17, 2025, 9:15am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939 "2025-11-17T09:15:34Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![J.Marfo](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/j/ce7236/32.png) [@J.Marfo](https://get-help.theconstruct.ai/u/J.Marfo)\
**Post date:** [November 17, 2025, 9:15am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/1 "2025-11-17T09:15:34Z")

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I tried running the Python script as described in the instructions, but the simulation does not seem to respond to control inputs.

 ![Screenshot 2025-11-17 041359](https://get-help.theconstruct.ai/uploads/default/original/2X/3/307ce1b9311025b98a3b0e7f92b88d565898e702.jpeg)

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**Author:** ![Gnome](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/g/87869e/32.png) [@Gnome](https://get-help.theconstruct.ai/u/Gnome)\
**Post date:** [November 17, 2025, 3:58pm UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/2 "2025-11-17T15:58:50Z")

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I had this issue, but it appears that the program maps to the incorrect variables - it maps to WSAD, rather than “uio jkl m,.” as it claims to.

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**Author:** ![J.Marfo](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/j/ce7236/32.png) [@J.Marfo](https://get-help.theconstruct.ai/u/J.Marfo)\
**Post date:** [November 18, 2025, 4:24am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/3 "2025-11-18T04:24:43Z")

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I tried this, but still didn’t move

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**Author:** ![Gnome](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/g/87869e/32.png) [@Gnome](https://get-help.theconstruct.ai/u/Gnome)\
**Post date:** [November 18, 2025, 9:13am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/4 "2025-11-18T09:13:07Z")

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Did you click on the simulation on the top right before you tried using the keyboard?

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<div class="post-metadata">

**Author:** ![bayodesegun](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/bayodesegun/32/10684_2.png) [@bayodesegun](https://get-help.theconstruct.ai/u/bayodesegun)\
**Post date:** [November 18, 2025, 9:34am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/5 "2025-11-18T09:34:32Z")

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@Gnome @J.Marfo  
The simulation is not responding because something is blocking it, as indicated by a red square dot in the top-left corner of the simulation window.

Please take a look at the following post to see how you can fix it:

- [How to fix an unresponsive simulation with red square dots in top-left corner](https://get-help.theconstruct.ai/t/how-to-fix-an-unresponsive-simulation-with-red-square-dots-in-top-left-corner/38962)

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**Author:** ![system](https://get-help.theconstruct.ai/uploads/default/original/2X/9/9d3ce8305cc0d0d9b6e07d15767a6f245c526f1b.jpeg) [@system](https://get-help.theconstruct.ai/u/system)\
**Post date:** [November 23, 2025, 9:35am UTC](https://get-help.theconstruct.ai/t/simulation-not-responding/38939/6 "2025-11-23T09:35:07Z")

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