Interesting theory
My record high baro since starting recording was 1040 mb at 23:54 last night. I note that things have "come back to normal" since the baro came back down today.
Update on last post is that the gifs are now working again as well.
I'm totally confused, but happy it is working again.

Very many thanks for your time and help.
I'll keep an eye out next time I get a high baro to see if it does the same again!
Best regards,
Tony