I'm having the same issue, no mods installed, just Forge with both 1.9 and 1.9.4 servers using Forge versions forge1.9-12.16.1.1907 and forge1.9.4-12.17.0.1909
I'm having the same issue, no mods installed, just Forge with both 1.9 and 1.9.4 servers using Forge versions forge1.9-12.16.1.1907 and forge1.9.4-12.17.0.1909