Info
I have experienced problems both logging into my account and using the map features of the following web site:
https://www.zap-map.com/live/
This site is a live site plotting all the Electrical Vehicle charging points around the UK and their availability.
Transpires Child Protection under Web Safe was blocking this site... somehow, with no warning message.
Anyhow, thanks to Zap-Map issues are now identified and resolved and I have added this site to my allowed sites.
Info if anyone else impacted
At least disabling Child Protection has resolved functionality problems.