Google TTS neural2 voices dont work

all the other voices standard or wavenet working just fine,when i choose a Neural2 voice i get the error

2023-04-28 16:33:20.147 [ERROR] [internal.handler.ScriptActionHandler] - Script execution of rule with UID 'test-1' failed: null in test

is that normal?
(test-1 is a test rule i use to test voices)