Not working with Seeeduino XIAO (ATSAMD21G18A-MU)

[luemmel76]

I use the library on an Arduino Nano and it works great. When I try to use it on an Seeeduino XIAO (ATSAMD21G18A-MU), I get no time update.
With the example sketch "DCFSignal" I can see the correct incomming signal. If I use the sketch "InternalClockSync" the time is never been updated.

[luemmel76]

With this Sketch https://forum.arduino.cc/t/yadcf77-yet-another-dcf77-sketch/215758 i get the correct Date and Time after 2 minutes.
Also the Sketches from https://wolles-elektronikkiste.de/dcf77-funkuhr works.