Remember all those weapons and ammunition Europe was going to produce for Ukraine? The money was taken, but the supplies, arms/ammo either didn't arrive or were subpar.
Defense Minister Oleksii Reznikov has accused American and Polish defense companies of failing to deliver.
This included companies like Alfa in Poland that were supposed to supply everything from flak jackets to artillery pieces and ammunition.
If you recall the corruption of US contractors in Afghanistan, this was entirely predictable - another obstacle in addition to insufficient industrial capacity. With allies like this, Ukraine needs no enemies.