S10e downgrade from android 10 to 9 GSI HavocOS

I’ve followed the latest tutorial successfully on installing TWRP and HavocOS v3.8. I would like to use the same method to downgrade to android 9 (Havoc 2.9). When I flash Havoc 2.9 on TWRP, I end up in a bootloop. How can this be fixed please? I’ve included photos of my s10e (SM-G970F)
Thanksandroid 9 Havoc flashed

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Normally u have to format between android versions have u tried that??

nevermind, I decided to stick with latest HavocOS, thanks!

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