Build 1898 has introduced a new way of specifying a delimiter between an expression and a format. The old one when a comma was used made it impossible to use functions inside expressions that also used comma between parameters of the functions. The new delimiter is a @ symbol. so you can use the following format:
Expression@PresentationFormat
The old delimiter comma can still be used but only if comma is not used as part of the expression and/or format.
In your case you have a comma being part of your format, so you cannot use a comma delimiter any more. So please change your expressions that use comma in the format to use the @ delimiter, for example:
<<TourBookings.TourStart@MMM dd, yyyy>>
Sorry for the inconvenience
