Strange PPL error

[Dobiray]

I have drilled down this issue a little bit more with some strange results. In contrast to the help the program works with the following code:

EXPORT CAS2HOME(VALUE)
BEGIN
PRINT(REPLACE(VALUE;"x";"X"));
END;

Well using the same code on the virtual HP Prime under MacOS a "," is needed in order to get it working. I am a bit puzzled. My real HP Prime is G2 and has the latest official Firmware 20211202 the virtual on MacOS (20200116 v14425).

Does this make sense to anyone? By the way the help says REPLACE(Object1,start,Object2).