Can't launch clover after installing ubuntu

I am in the middle of creating a triple boot on my lenovo X1 yoga. I successfully installed windows, and it correctly booted clover and let me choose between the two. Once I installed ubuntu, however, it defaults to grub and does not let me access Clover unless I use my flash drive. Once I get into clover, all 3 OS show up. Anyone know how to fix this? All 3 OS are on the same drive.

submitted by /u/jonahdf
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