If plugin installed with Woocommerce composite products price calculated wrong

I have installed woocommerce composite products and bulk discount. If both plugins activated, the price of composite products is calculated wrong. At the product bulk discount is disabled. At the product there is a discount (par ex. 1000€ -3% = 970€) set with composite product. The price on the preview (website) is correct. If i add this product to the chart the discount was calculated double. (1000€ -3% -3% = 940,9%)
If i disable the bulk discount plugin the price was calculated correct!
Please help – if i have 30% discount the discount was 30% + 30% !….

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