I think this is a bug in Gutenberg Editor and already a ticket is created for this: https://core.trac.wordpress.org/ticket/45527
Till then please use classic editor.
Install it from here: https://wordpress.org/plugins/classic-editor/ 🙂
@bizanimesh Thanks for the quick reply.
Great, im glad im not the only one.
Will use classic for now. Thanks 🙂