I decided to give it a go since Snivel said they had no issues. I created a zone. Essentially a safe zone. Started building and have not had any issues for quite a few hours. I have the same zone flags as I did when it wasn't working (after the inital update last week). Before I'd go to build in the zone and the server would crash. Now it seems to be happy, we shall see once I finish and users start entering the zone. :D

 server crashing when building in zone

Not seeing any issues with building in a zone since the last game update that disabled batching by default. If you have turned it back on then you will likely have issues

I built 8 hours with no problems. Equivelent of 6x10 9 floor with zone manager loaded.

good to know thanks snivel

And how to be servers on which 250000+ entities without batching.colliders? How to make the plugin work with batching.colliders enabled

The server crash/restart bug when building in an active zone has returned for me with today's (June 14, 2019) server+client update. Using ZoneMananger 2.5.15 on Oxide 2.0.4228. Settings for the zone are as follows:

{
      "Name": "Redacted",
      "Radius": 20.0,
      "Radiation": 0.0,
      "Comfort": 0.0,
      "Temperature": 0.0,
      "Location": "1303.811 18.98475 445.0638",
      "Size": "0 0 0",
      "Rotation": "0 0 0",
      "Id": "74047640",
      "EnterMessage": "Redacted",
      "LeaveMessage": null,
      "Permission": null,
      "EjectSpawns": null,
      "Enabled": true,
      "Flags": "SleepGod, UnDestr, NoBuild, NoTp, NoChat, NoGather, NoDecay, NoDeploy, NoBoxLoot, NoPlayerLoot, NoCorpse, NoSuicide, NoRemove, NoBleed, NoUpgrade, NoPickup, NoCollect, NoDrop, NoCup, NoTrade, NoShop, NoSignUpdates, NoLootSpawns, NoStash, NoCraft, NoTurretTargeting, NoEntityPickup, NoFallDamage, NoDoorAccess"
    }​