PnP.Framework 1.5.0 LoadClientSidePage() Exception

Below is the code I am using in a .NET Core 3.1 console application.

var clientSidePage = clientContext.Web.LoadClientSidePage(mordernPageName);

For most of the pages, the above code works. For a few pages, it throws an exception. All pages work fine for end users in browsers.

Below is an example of the exception:

Message: '3' is invalid after a value. Expected either ',', '}', or ']'. LineNumber: 0 | BytePositionInLine: 2103.

at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan1 bytes) at System.Text.Json.Utf8JsonReader.ConsumeNextToken(Byte marker) at System.Text.Json.Utf8JsonReader.ConsumeNextTokenOrRollback(Byte marker) at System.Text.Json.Utf8JsonReader.ReadSingleSegment() at System.Text.Json.Utf8JsonReader.Read() at System.Text.Json.JsonDocument.Parse(ReadOnlySpan1 utf8JsonSpan, Utf8JsonReader reader, MetadataDb& database, StackRowStack& stack)
at System.Text.Json.JsonDocument.Parse(ReadOnlyMemory1 utf8Json, JsonReaderOptions readerOptions, Byte[] extraRentedBytes) at System.Text.Json.JsonDocument.Parse(ReadOnlyMemory1 json, JsonDocumentOptions options)
at System.Text.Json.JsonDocument.Parse(String json, JsonDocumentOptions options)
at PnP.Core.Model.SharePoint.PageWebPart.FromHtml(IElement element)
at PnP.Core.Model.SharePoint.Page.LoadFromHtml(String html, String pageHeaderHtml)
at PnP.Core.Model.SharePoint.Page.LoadPageAsync(IList pagesLibrary, IListItem item)
at PnP.Core.Model.SharePoint.Page.LoadPagesAsync(PnPContext context, String pageName)
at PnP.Core.Model.SharePoint.Web.GetPagesAsync(String pageName)
at PnP.Core.Model.SharePoint.Web.GetPages(String pageName)
at Microsoft.SharePoint.Client.PageExtensions.LoadClientSidePage(Web web, String pageName)

Start with PnP.Core.Model.SharePoint.PageWebPart.FromHtml in the stack trace, then follow Page.LoadFromHtml and the LoadClientSidePage call using one of the pages that fails. Reproduce the JSON parsing exception and inspect the page content around byte position 2103. Done means the affected pages load without the reported exception.