CS+ Crashes When Connecting to V850ES/FJ3 Over JTAG

I am working on a legacy project with an FJ3 series processor, but every time I try to connect to the chip it causes CS+ to crash.

The JTAG signals look fine until the software crashes and all the lines go low.

I am powering the device from the E1 (3.3V).

Windows seems to think the crash is the result of an unhandled exception in .NET.

Software: CS+ for CS,CX V4.04.00
Hardware: E1