Every time I crop or resize an image, the image disappears, I only see the checker board. If I draw on it, the image reappears in block behind where I drew. I unfortunately couldn't find a way to attach an image on this post (which would be useful considering we are talking about an image editing/drawing software ).

Any ideas?

Which operating system and which version of krita are you using?
Can you upload a full .png screenshot, including the layers docker, to an image hosting website like Imgur (or whatever) or use your personal Dropbox (or whatever) file hosting service and then post a link to it here?

If you have a complex multilayer image, can you try to repeat this on the simplest structure image possible to make diagnosis easier?
Can you also provide more information about the steps that lead up to the problem?

EDIT: Additional:
You can post inline images, with a width limit of about 710 pixels (I'm not sure if i remember that figure correctly), by using the img tags so that it looks like this:

You put your own image website location in there, then check it with the Preview button.