Gantt Chart with Matrix Visual

OKgo OK, this worked for me. PBIX is attached below signature:

Gantt = 

VAR StartDate = 
    CALCULATE(
        MIN(Batches[Manufacturing Date]),
        ALLEXCEPT('Batches','Batches'[Status])
    )

VAR EndDate =
    CALCULATE(
        MIN(Batches[Labelled Expiry]),
        ALLEXCEPT('Batches','Batches'[Status])
    )

VAR CalendarStart = MIN('Calendar'[Date])

VAR CalendarEnd = MAX('Calendar'[Date])

VAR ProjectPeriod = IF( CalendarStart >= StartDate && CalendarEnd <= EndDate, 1, 0 )

VAR ProjectStatus = 
    CALCULATE(
        MIN(Batches[Status]),
        ALLEXCEPT('Batches','Batches'[Status])
    )

VAR Result = 
    IF(
        ProjectPeriod = 0, BLANK(),
        SWITCH(
            TRUE(),
            ProjectStatus = "Manufactured", 1,
            ProjectStatus = "Plan", 2,
            ProjectStatus = "Cancelled", 3
        )
    )
RETURN
    Result