Since "MTP" in the context of Novastar usually refers to their MCTRL series (often typed as MTP by mistake or referring to specific Multi-Transmitter Protocols) or generic Mean Well Power Supply integration, I have interpreted this as a request regarding Novastar MCTRL receiving cards and driver configuration.
This is the most frequent error. It means Windows sees something plugged in, but the driver isn't responding.
MTP_VX_Upgrade_Tool.exe from NovaStar..bin file.to facilitate data exchange between a computer and a NovaStar LED controller. While standard controllers typically use the Silicon Labs CP210x USB to UART Bridge
I was currently feeling like the biggest idiot on the planet.
In short: No driver = No communication = A dark, or unsynchronized, LED wall.
To make an MTP driver work with HDR:
Installation: Run the installer and ensure all add-on applications and drivers are selected.