Looks like the colon (:) is used for seperating params there. Therefore, you may want to use text='%{pts:gmtime:1575526882:%d/%m/%y %H}:%{pts:gmtime:1575526882:%M}'
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Looks like the colon (:) is used for seperating params there. Therefore, you may want to use text='%{pts:gmtime:1575526882:%d/%m/%y %H}:%{pts:gmtime:1575526882:%M}'