# Stimuli dissapear in online experiment

**URL:** <https://discourse.psychopy.org/t/stimuli-dissapear-in-online-experiment/12564>\
**Category:** Online experiments\
**Created:** [April 19, 2020, 11:18pm UTC](https://discourse.psychopy.org/t/stimuli-dissapear-in-online-experiment/12564 "2020-04-19T23:18:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MarinaIosifian](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/marinaiosifian/32/7507_2.png) [@MarinaIosifian](https://discourse.psychopy.org/u/MarinaIosifian)\
**Post date:** [April 19, 2020, 11:18pm UTC](https://discourse.psychopy.org/t/stimuli-dissapear-in-online-experiment/12564/1 "2020-04-19T23:18:29Z")

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URL of experiment: Url: [https://run.pavlovia.org/MarinaIosifian/childsaleffects/html](https://run.pavlovia.org/MarinaIosifian/childsaleffects/html)

Description of the problem: I have several stimuli (words) which appear in different positions. Positions are specified in a conditions file (e.g., [0.3, -0.3]). However, when I run the experiment online, my stimuli simply do not appear on the screen. All other stimuli appear correcrtly and no error message is displayed. Could you please advise why this might happen?

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**Author:** ![MarinaIosifian](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.psychopy.org/marinaiosifian/32/7507_2.png) [@MarinaIosifian](https://discourse.psychopy.org/u/MarinaIosifian)\
**Post date:** [April 19, 2020, 11:48pm UTC](https://discourse.psychopy.org/t/stimuli-dissapear-in-online-experiment/12564/2 "2020-04-19T23:48:37Z")

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The issue is solved - I forgot that in the conditions file I should have set the stimulus position in two separate columns (0.3 in one column, -0.3 in another).