Hello,
Thanks for reporting this issue. It seems to be related to the option ”
Load images on scroll” that you can activate in the customizer > Nimble Builder > Site Wide Options > Site wide page speed optimizations
You can also activate / deactivate for each page in the customizer > Nimble Builder > Current Page options.
Deactivating that option, at least for this page, should solve your problem.
But the “load image on scroll” option should work fine. I’m not able to reproduce the problem on this demo page : https://demo.presscustomizr.com/grid-module-test/
I suspect that one of your plugins, or a custom code that you may have added, enters in conflict with the theme.
That’s why I’d recommend following the usual troubleshooting steps and in particular the exploration of plugin conflicts.