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Z21 iPhone Blank Screen

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I've fired up my iPhone Z21 app this morning to a blank screen - all white.

It looks surprisingly like an update bug as I notice the app was updated yesterday.

However I also messed around with importing/exporting some layouts yesterday so, of course, it could be me.


I've done the usual turn off phone plus deleted the app and re-installed so I think it's likely the app itself.


Anyone with a similar experience?





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Yes, you are right. Same here. My phone updated the Z21 app this morning. I just tried it after reading your post and got the same blank - all white - screen.





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There are many reports on Facebook Z21 groups about the latest iOS version of the app having this problem. For those of you who haven't updated yet, best to hold off until Roco fixes the issue.

- - - Paul

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Martijn Meerts

Good to know I'm not the only one terrible at testing my own code 😄


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I have just submitted a ticket and already received a reply, so they are working on it.



Dear Sir ,

thank you for your feedback.

First of all, we would like to apologize for the inconvenience caused.

The error described could be reproduced from our side.
The problem described did not occur in previous tests prior to publication.

The APP development team is working flat out to resolve the issue. A revised version will be made available in the store as soon as the error is fixed.

We wish you continued enjoyment with your hobby - model railways.

Kind regards
Your Customer Service Team


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Posted (edited)

1.4.4 is available already and the problem is solved. 😀
I have to say that I am impressed by Fleischmann/Roco’s support. 

Edited by Madsing
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