Seems like the Gantom RePlay was discontinued in 2020 (according to Ganthom). Bummer, seemed like a great device. Which DMXKing devices are reliable?Chauvet recently released the DMX-RT4 and replaced the buggy DMX-RT. Maybe this is a new possibility...
FYI Chauvet replaced this unit with the DMX-RT4 and it looks like it supports firmware updates (to hopefully fix future bugs).
https://www.chauvetdj.com/products/dmx-rt-4/They discontinued the DMX-RT (for good reason).