Concatenate date change to number after syncing

[justin2]

The concatenate date (Friday, 3 Apr 2020) change to number after syncing.

Before syncing

After syncing

Formula:
Concatenate(Switch(Weekday([REPORT ID]),1,“Sunday”,2,“Monday”,3,“Tuesday”,4,“Wednesday”,5,“Thursday”,6,“Friday”,“Saturday”),”, ” ,Day([REPORT ID]),” ” ,Switch(MONTH([REPORT ID]), 1, “Jan”, 2, “Feb”, 3, “Mar”, 4, “Apr”, 5, “May”, 6, “Jun”, 7, “Jul”, 8, “Aug”, 9, “Sep”, 10, “Oct”, 11, “Nov”, “Dec”),” ”,year([REPORT ID]))

In edit mode, the date is ok.

Is this a bug in Appsheet?