The monthly values of the PMIP3 and PMIP4 datasets were shifted two months within the same year (i.e., January was erroneously coded as March, etc.). This affected the global seasonal maps (which corresponded to a shifted period in the version of the Interactive Atlas released on August 9) and the seasonal cycle plots (which were shifted by two months). This has been corrected in the final version (September 27, official release).
The monthly values of the PMIP3 and PMIP4 datasets were shifted two months within the same year (i.e., January was erroneously coded as March, etc.). This affected the global seasonal maps (which corresponded to a shifted period in the version of the Interactive Atlas released on August 9) and the seasonal cycle plots (which were shifted by two months). This has been corrected in the final version (September 27, official release).
Thanks to Chris Brierley, https://github.com/IPCC-WG1/PMIP_for_AR6_Interactive_Atlas