[BUG] APNS Template Ignored when Added

[raymond-dillon]

Describe the bug
Cannot attach template to MSNotificationHub.

Exception or Stack Trace

0 CoreFoundation 0x00000001a97a8814 4D6DD6DD-22E4-3858-9A0C-3CB77C2F13D6 + 1230868
1 ProjectName.iOS 0x0000000108073938 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 61493108
2 ProjectName.iOS 0x0000000108073b78 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 61493684
3 ProjectName.iOS 0x00000001080824c0 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 61553404
4 Foundation 0x00000001aaac9d40 __NSFireTimer + 64
5 CoreFoundation 0x00000001a97170f0 4D6DD6DD-22E4-3858-9A0C-3CB77C2F13D6 + 635120
6 CoreFoundation 0x00000001a9716cf0 4D6DD6DD-22E4-3858-9A0C-3CB77C2F13D6 + 634096
7 CoreFoundation 0x00000001a97161c4 4D6DD6DD-22E4-3858-9A0C-3CB77C2F13D6 + 631236
8 CoreFoundation 0x00000001a97104fc 4D6DD6DD-22E4-3858-9A0C-3CB77C2F13D6 + 607484
9 CoreFoundation 0x00000001a970f818 CFRunLoopRunSpecific + 572
10 GraphicsServices 0x00000001bfe15570 GSEventRunModal + 160
11 UIKitCore 0x00000001ac03b0e8 186F3A78-108A-3057-A67E-800A88EBFF00 + 11731176
12 UIKitCore 0x00000001ac040664 UIApplicationMain + 164
13 ProjectName.iOS 0x00000001054e3ed8 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 15815956
14 ProjectName.iOS 0x0000000105420530 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 15014764
15 ProjectName.iOS 0x00000001054204b4 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 15014640
16 ProjectName.iOS 0x0000000104615840 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 290428
17 ProjectName.iOS 0x00000001049c4df0 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 4154412
18 ProjectName.iOS 0x00000001080fc618 mono_pmip + 28048
19 ProjectName.iOS 0x00000001081b612c mono_pmip + 788644
20 ProjectName.iOS 0x00000001081bc3e0 mono_pmip + 813912
21 ProjectName.iOS 0x00000001080dab70 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 61915564
22 ProjectName.iOS 0x00000001082c1b40 xamarin_log + 24484
23 ProjectName.iOS 0x0000000104615688 _ZN7plcrash2MS5async24dwarf_cfa_state_iteratorIyxE4nextEPjPNS1_28plcrash_dwarf_cfa_reg_rule_tEPy + 289988
24 libdyld.dylib 0x00000001a93ee140 5FFFB964-39D6-3CCF-BD34-C6CA4A148D1A + 4416
)

To Reproduce

Add a template to MSNotificationHub

Code Snippet

// Set the delegate for receiving messages
MSNotificationHub.SetDelegate(new NotificationDelegate());

// Start the API
MSNotificationHub.Start(Constants.ListenConnectionString, Constants.NotificationHubName

public static string APNTemplateBody = @"{
                                            ""aps"":  { 
                                                ""content-available"":1, 
                                                ""messageParam"" : ""$(messageParam)""
                                                    }
                                                }";

var body = Constants.APNTemplateBody;
        var template = new MSInstallationTemplate();
        template.Body = body;
       


        MSNotificationHub.SetTemplate(template, key: "template1");

Expected behavior

When i send a notification matching the template, it is received by the app.

Screenshots
If applicable, add screenshots to help explain your problem.

Setup (please complete the following information):

• OS: [e.g. iOS 14.6]
• IDE : [e.g. Visual Studio 2019 for Mac]
• 3.11

Note: When I remove the MSNotificationHub.SetTemplate(template, key: "template1"); the crash does not occur.