I have a LS8P-Dual-WLED, and whenever it loses power it forgets all its configured sections and effects. Controller: LS8P-Dual-WLED Firmware: 0.14.1 (ESP02 .bin.gz)
I created some presets (and backed them up), and its working better now. Sorry, was more a WLED question than Athom.
There is no memory function per se. If you want to have it, you must compile your own firmware.