Grouping model causes critical problem

Help and Feedback Building Support
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#1

Загрузка Desktop 2021.12.27 - 17.11.41.03.mp4
hello im tried to build some stuff but i have problem
when im grouping lights

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it creates new folder with same lights (sometimes model is empty)
but when im deleting model its deletes lights, also im getting models with invisible icons and i cant delete them
and when im enter script in workspace to find scripts im seeing models without icons when im clicking them they dissapear
what do i do
is there some virus or its some studio problem

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#2

If the light effects are contained within the Model than you delete them. Make sure the light effect is inside of the “Light”- model

#3

well im fixed it with entering script finding empty models clicking them and after they gone im deleted free models which my friend made (clothes stand)