Mohamad mehdi Kharatizadeh

Hi Everyone,

I'm also affected by this bug. Here is how I'm affected:

I have set up an automatic flower farm. I have a clock circuit attached to a dispenser below a grass block. And I have also a pulse multipler circuit attached to a couple of dispensers with water buckets. When I turn clock circuit ON using a lever, bonemeal is applied successfuly to grass block, some grass is generated and is washed away consequently using water. However, on the second time a pulse is sent to the dispenser containing bonemeal, the server crashes. Maybe it's because of water?

 ```
Version: 1.14.60.5
OS: Linux
Server start: 2020-05-24 19:16:34 UTC
Dmp timestamp: 2020-05-24 19:21:39 UTC
Upload Date: 2020-05-24 19:21:39 UTC
Session ID: 61ff3d94-be99-4684-b0ae-080dbff033be
Commit hash:
Build id: development
CrashReporter Key: 8c4937c1-64cb-3532-a8dc-1deb28f67293

Crash
[2020-05-24 19:21:40 INFO] at Actor::getLevel[] (UnknownFile:?)
at GrassBlock::onFertilized[BlockSource&, BlockPos const&, Actor*, FertilizerType] const (UnknownFile:?)
at Block::onFertilized[BlockSource&, BlockPos const&, Actor*, FertilizerType] const (UnknownFile:?)
at FertilizerItem::dispense[BlockSource&, Container&, int, Vec3 const&, unsigned char] const (UnknownFile:?)
at DyePowderItem::dispense[BlockSource&, Container&, int, Vec3 const&, unsigned char] const (UnknownFile:?)
at DispenserBlock::dispenseFrom[BlockSource&, BlockPos const&] const (UnknownFile:?)
at DispenserBlock::tick[BlockSource&, BlockPos const&, Random&] const (UnknownFile:?)
at Block::tick[BlockSource&, BlockPos const&, Random&] const (UnknownFile:?)
at BlockTickingQueue::tickPendingTicks[BlockSource&, Tick const&, int, bool] (UnknownFile:?)
at LevelChunk::tick[BlockSource&, Tick const&] (UnknownFile:?)
at Player::tickWorld[Tick const&] (UnknownFile:?)
at ServerPlayer::tickWorld[Tick const&] (UnknownFile:?)
at std::function<bool [Player&]>::operator[][Player&] const (UnknownFile:?)
at Level::forEachPlayer[std::function<bool [Player&]>] (UnknownFile:?)
at Level::tick[] (UnknownFile:?)
at ServerLevel::tick[] (UnknownFile:?)
at GameSession::tick[] (UnknownFile:?)
at Minecraft::tickSimtime[int, int] (UnknownFile:?)
at Minecraft::update[] (UnknownFile:?)
at ServerInstance::_update[] (UnknownFile:?)
at clone (UnknownFile:?)
```

I'm having this issue on Samsung Galaxy S9 too. It comes at random and it persists for I don't know how much. I just give up at trying and come back several hours later until I can play.