Slime-chunk-based slime farm no longer working

I have completed a slime farm in a previous update that used the slime chunk spawning system. It used to produce more slime balls than a single chain of hoppers could carry. Since the update that "fixed" slime spawning went live no slimes have spawned at all. The issue is not the mob cap because other mobs still easily spawn. I have attempted many solutions to try to get my slimes to come back. I've tried light level changes and reloading the entire game. I would appreciate it if this bug were addressed because I really am a big fan of slimeblocks.
Thanks
-HGFRINK27