LTspice and EPC GaN parts barfing up singular nodes

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Anyone have problems with the EPC .lib files running when using negative supplies or floating gate drive? I have a circuit that runs with any other FET. Couldn't figure out what was going on and finally rearranged the EPC sample .asc with just the drive pulses and a +/- supply. Shows the same problem. I'm no LTspice (or any spice) whiz and nothing in the file looked obvious...😕
 
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