plugins say they need updating, then still old version after update

I have problems with the dashboard and deactivating and then downloading the latest version didn't help...

It shows plugins need updating, then says it successfully updated the plugins, move away and come back and .... yep, the same plugins need updating.

I'm unsure of timeframe for this issue's onset, I would estimate a month and the only thing changes was a slider was added to the theme (yes, I even removed the slider to see if there was a difference)

Any help most welcome