[Rendering] Adaptive cards not rendering on certain iOS device

Target Platforms

iOS

Version : 17.4

SDK Version

1.4

<PackageReference Include="AdaptiveCards.Templating" Version="1.4.0" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />

.NET Version

7.0

<TargetFramework>net7.0</TargetFramework>

Application Name

Outlook

Version : 4.2408.1

Problem Description

Hello,

Adaptive cards is not working on some iOS devices, sent via smtp.

Tried to update IOS as well as Outlook app.

Screenshots

Card JSON

{
	"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
	"type": "AdaptiveCard",
	"originator": "${originator}",
	"hideOriginalBody": true,
	"version": "1.1",
	"constrainWidth": false,
	"body": #BODY#,
	"actions":
	[
		{
			"type": "Action.ShowCard",
			"title": "Approve",
			"card":
			{
				"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
				"type": "AdaptiveCard",
				"version": "1.1",
				"body":
				[
					{
						"type": "TextBlock",
						"text": "Remarks:"
					},
					{
						"type": "Input.Text",
						"id": "reasonApprove",
						"isMultiline": true,
						"maxLength": 1000
					}
				],
				"actions":
				[
					{
						"type": "Action.Http",
						"title": "Approve",
						"method": "POST",
						"url": "${apiClient}",
						"headers":
						[
							{
								"name": "Originator",
								"value": "${originator}"
							},
							{
								"name": "Status",
								"value": "${approvalStatus}"
							}
						],
						"body": "${replyApproveData}",
						"bodyContentType": "application/json"
					}
				]
			}
		},
		{
			"type": "Action.ShowCard",
			"title": "Reject",
			"card":
			{
				"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
				"type": "AdaptiveCard",
				"version": "1.1",
				"body":
				[
					{
						"label": "Remarks:",
						"type": "Input.Text",
						"id": "reasonReject",
						"isRequired": true,
						"errorMessage": "Remarks are required for rejection.",
						"isMultiline": true,
						"maxLength": 1000
					}
				],
				"actions":
				[
					{
						"type": "Action.Http",
						"title": "Reject",
						"method": "POST",
						"url": "${apiClient}",
						"headers":
						[
							{
								"name": "Originator",
								"value": "${originator}"
							},
							{
								"name": "Status",
								"value": "4"
							}
						],
						"body": "${replyRejectData}",
						"bodyContentType": "application/json"
					}
				]
			}
		},
		{
			"type": "Action.ShowCard",
			"title": "Return for Reprocessing",
			"card":
			{
				"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
				"type": "AdaptiveCard",
				"version": "1.1",
				"body":
				[
					{
						"label": "Remarks:",
						"type": "Input.Text",
						"id": "reasonReprocess",
						"isRequired": true,
						"errorMessage": "Remarks are required for rejection.",
						"isMultiline": true,
						"maxLength": 1000
					}
				],
				"actions":
				[
					{
						"type": "Action.Http",
						"title": "Return for Reprocessing",
						"method": "POST",
						"url": "${apiClient}",
						"headers":
						[
							{
								"name": "Originator",
								"value": "${originator}"
							},
							{
								"name": "Status",
								"value": "${rejectionStatus}"
							}
						],
						"body": "${replyReprocessData}",
						"bodyContentType": "application/json"
					}
				]
			}
		}
	]
}

Sample Code Language

No response

Sample Code

No response

No repository file, test, or entry point is identified. Start by reproducing the supplied Adaptive Card JSON in Outlook on iOS 17.4 with the listed SDK and package versions, comparing affected and working devices. Done means the card renders correctly on the affected iOS devices, including its ShowCard inputs and actions.