I am unsure if this is a bug. I guess since there is no catching of the ExecutionException fatal error. This is to be expected as the log shows Non [a-z0-9/._-] character in path of location: minecraft:doubleMover and I don't relive it is good to have a fatal error. Recommend a catch statement that sends the player a message (in red) stating(until otherwise) "Sorry, the name '"+((user input))+"' has characters that are not _lowercase_ *a-z*, *0-9* or '*/*', '*.*', '*_*' or '*-*'" Note: this fatal error was seen (in the log) in version 18w03b. Also, I may be helpful to show all fatal errors in-game asking the player to report if fatal error has not been logged; At least for snapshots.
I am unsure if this is a bug. I guess since there is no catching of the ExecutionException fatal error. This is to be expected as the log shows
Non [a-z0-9/._-] character in path of location: minecraft:doubleMover
and I don't relive it is good to have a fatal error. Recommend a catch statement that sends the player a message (in red) stating(until otherwise)
"Sorry, the name '"+((user input))+"' has characters that are not _lowercase_ *a-z*, *0-9* or '*/*', '*.*', '*_*' or '*-*'"
Note: this fatal error was seen (in the log) in version 18w03b.
Also, I may be helpful to show all fatal errors in-game asking the player to report if fatal error has not been logged; At least for snapshots.