Aaaaaaah! I'm so glad. You are a genius. I am blind.
Thank you, thank you, thank you.
        Thank you, thank you, thank you.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
get _%3A_.log -rawtransfersettings ReplaceInvalidChars=0
_%3A_.log arrives renamed to _%253A_.log. Which is not very good.
Copying "_%3A_.log" to remote directory started.
...
Status code: 10, Message: 771, Server: The file path does not exist or is invalid., Language: en
(ETerminal) File path does not exist or is incorrect
...
Can't create a file on the server '/dl/_:_.log'. ("The file path does not exist or is incorrect
Error code: 10
_%3A_.log file
test.log file is not copied.