DMX Lighting

I know this is nothing to do with Algoriddim but wondering if any DJs suffered the same lighting problem as me.

Last night i had a huge 80s party so took along my full lighting rig. its all DMX controlled from a laptop dunning MyDMX3. Everything was mounted to the truss and I plugged it in and … nothing … not a single light worked. When i checked every light had lost its DMX start address setting. its been a while since I used this lighting but is it possible it lost its memory for the settings? It caused a major panic as i struggled to reset all the dem channels on lighting that was 3m high.

Anyone else experienced this?