Notice (2018-05-24): bugzilla.xamarin.com is now in
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Please create a new report on
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your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
Steps to reproduce:
1. Add a page and add some visible components to it;
2. Add a control template to either the page or App.xaml, it makes no difference;
3. Set the control template of the page to the key of the control template;
4. Open the page in the Xamarin Forms Previewer.
The entire content of the page, template and components, is previewed.
Only the control template is previewed.
I believe resource lookups were broken with older releases of Xamarin.Forms. If you install Xamarin.Forms 2.3.4 pre6 or newer this should work. If it does not work, attaching a sample application would be helpful to ensure we fix this case too.
We are about to release an update, so if Xamarin.Forms 2.3.4 pre6 combined with the 15.1 update of Visual Studio does *not* work, please re-open the issue and we'll look into it!
(probable fix https://github.com/xamarin/Xamarin.Forms/commit/dbe0d4945da400a5b00599155d22cda78754294a )