Gallery poster not posting for facebook and twitter

[giomaster]

Hi,

Just suddenly, the gallery poster for Rabbit is not posting for facebook and twitter.
fyi.

 

[Andre M]

Me too

 

[giomaster]

Me too

I noticed. Also Instagram.
So these 3 socials are affected. Facebook, Twitter, Instagram.
So far, only Pinterest works fine without glitches both for product and gallery poster. What I dont understand is that it works initially well for some cycles and then next time, it doesnt. But suddenly?