Z-Wave Integration and Firmware Issues

I’ve been successfully using my ISY994i for over a year now, but recently added a Z-Wave board and module, and I’ve encountered some challenges. When adding two Leviton DZPD3 modules via ISY994, they appear correctly in the device tree. However, when I send an ON or OFF command from the admin console, the modules respond as expected, but I receive error messages. I’ve tried excluding and re-adding the modules multiple times without success. Additionally, when attempting to upgrade the Z-Wave firmware, I receive error messages. The firmware versions are as follows: [Image showing firmware versions]. Any guidance would be greatly appreciated. Thanks!