I have a customer who is receiving the following error when batch editing products in a variant group:
The URL-encoded form data is not valid. at System.Web.HttpRequest.FillInFormCollection() at System.Web.HttpRequest.EnsureForm() at System.Web.HttpRequest.get_Form() at System.Web.HttpRequest.get_HasForm() at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) at System.Web.UI.Page.DeterminePostBackMode() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
As far as I can tell, the data is correct. The group has a large number of products (36). There is nothing in the log files. Any idea where I can look into the cause of the error?
Litium version: 4.8.10