Rooting Galaxy Watch4

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I've unlocked bootloader, got boot.img(hashes match in update.zip and my boot.img + it boots fine), patched it and vbmeta in tar by magisk 24.3, but when i flash new boot.img, it throws me "SECURE FAILED: BOOT" error on watch and system doesn't boot, flashing unpatched boot.img gets watch to work again. Why does it happen and is there any fix? SM-R860Files:files.zipdrive.google.com