Nothing happens when I click on blocks

In designer mode, I deleted few horizontal/vertical arrangements which I no longer needed and a clock. Now when I click on blocks, nothing is happening and it stays in designer mode only :frowning:

Kindly help :frowning:

Try to clear your Browser cache and Cookies.
Then reload the Page.

Thanks for responding
I did nothing and somehow it has displayed blocks screen now on firefox.
Didnt check chrome yet.

thanks again