“Send New Thumbnail Requests” after changing theme options doesn’t work

Hi,

I’m using the latest Avada Theme and did some Theme Option changes when already I did all my image optimisation etc. The result of changing some options is that the theme generated new thumbnails, i.e. image versions which wasn’t there when I did first image optimisation. There wasn’t used any Thumbnail Regeneration plugin.
For example on the server was:
image-file.jpg
image-file-150x150px.jpg
And now there is one more:
image-file-250x300px.jpg

As I understand, then “Send New Thumbnail Requests” should rescan the media library and request optimisation for these new thumbnails?

In my case, there is nothing happening. No errors, no messages, just reload page and nothing.

Should I destroy anything and start again, or this could be a bug?

Thanks,
Gints.