This problem is a thing since long time ago. And latest 1.19 bedrock dedicated server sometimes stuck on downloading resource packs. No matter of client. The only thing helps is restarting the server... Really tired of restarting server with every new member come in for years...
If only there was a chance to run multicore!
Noticed same problem. Looks like mobs are spawning underground only
1.14.3 bug still exist
Rideable skeleton horse can be spawned with `summon minecraft:skeleton_horse ~ ~ ~ {Tame:1}`
Try to launch it as administrator
Same on BDS after updating to latest version