Yeah, you are right. As recently I am facing the same issue for Affordable electric bike 2023 the when I updated C3750X 48PF-S to IOS 15.2.4E10. But after trying to fixing it for 2 days. I reswitched to C3750X 48PF-S because our whole work were getting disturbed and was not avail. So now I am going to hire an expert for updating it properly.