how to make the advanced gallery to show image thumbnail?

This topic is: Resolved

[Resolved]

This topic has 7 replies, 3 voices, and was last updated 2 years, 6 months ago by Hannah.

September 2, 2020 at 11:54 am

how to make the advanced gallery to show image thumbnail?
some times it show, some times no.
pls see the pics attached, I want to know how to make it appear thanks

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