Last days I have this strange issue in my Magento instance. When you are in front end catalog category page and press store view link, Magento changes to the right store view but you get message
Invalid form key. Please refresh page
This is happening to all catalog pages only. Not on homepage or cms pages.
I have no error in console or logs and I have increased max_inputs_vars in php to 200000
Also I don’t use Magento cookie path and I have set cookie lifetime to 14400
After further check this issue is not in dev server which I don't use Varnish and Redis. I am suspecting these....
Any help please?