Launching server using
java -Xmx4096M -Xms4096M -jar minecraft_server.18w07c.jar -o true
Server hangs after displaying the following
[17:52:18] [main/WARN]: Ambiguity between arguments [teleport, destination] and [teleport, targets] with inputs: [Player, 0123, @e, dd12be42-52a9-4a91-a8a1-11c01849e498]
[17:52:18] [main/WARN]: Ambiguity between arguments [teleport, location] and [teleport, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[17:52:18] [main/WARN]: Ambiguity between arguments [teleport, location] and [teleport, targets] with inputs: [0.1 -0.5 .9, 0 0 0]
[17:52:18] [main/WARN]: Ambiguity between arguments [teleport, targets] and [teleport, destination] with inputs: [Player, 0123, dd12be42-52a9-4a91-a8a1-11c01849e498]
[17:52:18] [main/WARN]: Ambiguity between arguments [teleport, targets, location] and [teleport, targets, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[17:52:18] [main/INFO]: Loaded 0 recipes
[17:52:18] [main/INFO]: Loaded 0 advancements
World does not generate, no further feedback, must use Ctrl-C to kill process. Very rarely (<5%) the process will launch, and the GUI will appear. Later version I was able to launch was 18w02a.
Tried launching without the "-o true", and adding "nogui" without success. I've made sure that this java release is whitelisted with the Windows Firewall.
Linked issues
duplicates
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I've tried with nogui and still cant get a launch, can you share that complete script? see if i'm doing something wrong?

I've tried the two snapshots this week (18w08a and 18w08b), and both of them appear to be working with my original parameters. I have not had a chance to jump into the game and try things, but the server launches successfully.

Update: Now trying to launch the server in order to play, and it is still >80% hang as previously described. I'm not sure if running an instance of the Java Edition in addition to the server on the same machine is a factor.

continue to have the same hang with 18w09a
Confirmed. Sometimes the server launches successfully and displays the GUI when running
java -Xmx4096M -Xms4096M -jar minecraft_server.18w07c.jar -o true
.If I add
--nogui
to the command, the server will launch successfully every time I try.