Cannot change the IPv4 management address for Dell Storage SCv3020

Hi guys!

I'm trying to change my Dell Storage SCv3020 IPv4 address to another one since I'm moving this unit from test to production. Both test and production of course has different VLANs and IP subnets for iSCSI and management. However, I'm not able to to so and was hit with a somewhat weird error.

It said that the bottom controller IP address is not within the same network as the gateway. I'm sure it's the same subnet after double, triple confirming it with subnet calculators tho 🤣🤣 If you have had this kind of issue before, please share with me any tips on fixing it. Thanks :)