Invalid tag value This XML tag has an invalid value. Please fix it and resubmit.

Have issues with Infinite SEO, locks image player, and locks upsite up,
so I use it to make sitemaps then turn it off.

Google webmaster gives me error message after sitemap upload.
Invalid tag value
This XML tag has an invalid value.
Please fix it and resubmit.

Line 1295
Parent tag: url
Tag: priority
Value: 2.0

Ideas on if it is an issue or shall I wait til next release?
Can someone please suggest a workaround without using plugins from various sources, seems to stop sites in their tracks.

Great plugins by the way.