same problem for me.
I changed logo url via templates admin.
It appears one time as frontend page but always creativia logo when entering on the site.
I reloaded, erase cache, put an other image in logo-startingpage.png w/o success.
May be because local installation but I do not understand why.
Will try to upload the site and I will send the url
EDIT: fixed. in fact, I was stupidly focussing on
templates / jf_creativia / images / core / starting...
but logo is there :
templates / jf_creativia / images / logo-jf_creativia.png
regards
lpe