For example, I raised some money from Alice, so I have obligation to pay $1M(+%) to Alice. In other words, Alice invested $1M into me. Now, my business grows, r

For example, I raised some money from Alice, so I have obligation to pay $1M(+%) to Alice. In other words, Alice invested $1M into me. Now, my business grows, risks are reduced, so Bob paid $1.25M to Alice. Now, I have obligation to pay $1M(+%) to Bob instead of Alice. What's wrong with that?