I have found that running my 1.14.2 server for several days will cause pillager patrols to lack a leader. No patrol leaders with banners are spawned at pillager outposts wither when they stop spawning with patrols. Once I stop the server and then restart it the patrol leaders are once again spawned with patrols and at pillager outposts. I have 16GB of memory on my server and up to 10GB can be used by java for running minecraft.
I just had a villages.dat file get zeroed out while I was afk and my iron titan quit working. No villagers or golems were killed, it just was zeroed out during an automatic save.
I have found that running my 1.14.2 server for several days will cause pillager patrols to lack a leader. No patrol leaders with banners are spawned at pillager outposts wither when they stop spawning with patrols. Once I stop the server and then restart it the patrol leaders are once again spawned with patrols and at pillager outposts. I have 16GB of memory on my server and up to 10GB can be used by java for running minecraft.