Yes, there is a corruption problem in Ukraine.
Guess who embezzled such an outrageously large amount of money that he had a golden toilet. And a golden bread loaf.
And guess who supported him.
To be fair, post-Maidan government has had corruption too, and not all of it stems from foreign interference, but as far as I know Zelensky and Poroshenko don’t have any Ceausescu-esque gold bathrooms laying around.