Please use the official TWRP to flash the ROM.
Download link:
https://dl.twrp.me/cheeseburger_dumpling/

First installation of Retrofit Dynamic Partitions ROMs:
1. Enter the newly flashed recovery
2. Untoggle "Unmount System before installing a ZIP" in Settings
3. Wipe metadata partition
4. Flash the ROM
5. Factory Reset (Format data is recommended) if you're coming from a different ROM
6. Reboot and Enjoy

Update ROM from Retrofit Dynamic Partitions to Retrofit Dynamic Partitions:
1. Enter recovery
2. Flash the update
3. Reboot and Enjoy

Switch to another Retrofit Dynamic Partitions ROM:
1. Enter recovery
2. Flash the ROM
3. Factory Reset (Format data is recommended)
4. Reboot and Enjoy

Revert back to standard partition ROM:
1. Enter recovery
2. Untick "Settings > Unmount System before installing a ZIP"
3. Do "Advanced > Unmap Super Devices"
4. Flash the ROM
5. Factory Reset (Format data is recommended)
6. Reboot and Enjoy