Thanks! I don't think Gitega counts because it used to be a capital then lost the status, then regained capital status in 2018.
"In late December 2018, Burundian president Pierre Nkurunziza announced that he would follow on a 2007 promise to RETURN Gitega its former political capital status, with Bujumbura remaining as economic capital and centre of commerce."
"In late December 2018, Burundian president Pierre Nkurunziza announced that he would follow on a 2007 promise to RETURN Gitega its former political capital status, with Bujumbura remaining as economic capital and centre of commerce."
https://en.wikipedia.org/wiki/Gitega