Same here. v5.2.1 exhibits ‘blank’ pages from WP, following activation. Upon ‘New Post’, upon clearing ‘W3 Total Cache’, etc. Effectively broken. Plug-in had to be disabled as it’s not very convenient to extract the prior version from backup file & overwrite. Awaiting another update, here.
Half of my pages, total of about 96 – are not being included in the sitemap. Only getting about 45 or so. Disturbing.
