Posted on 08/07/2020 08:31:28
Hi Adrian,
We've discovered that GlobalSettings.aspx file of my solution has not used data like
<__VIEWSTATE>/wEPDwUJMzgyNzc2NDc1DxYCHhNWYWxpZGF0ZVJlcXVlc3RNb2RlAgFkZASR6KVI3MLCw5fPyZ5IcOI2lAmNdKNQnyfgBk8px5uA</__VIEWSTATE>
<__VIEWSTATEGENERATOR>2B2E3591</__VIEWSTATEGENERATOR>
<ctl00_MainContent_ApplyReadonlyForAdministrators>
</ctl00_MainContent_ApplyReadonlyForAdministrators>
....
<ctl00MainContentStatisticsEnabled>False</ctl00MainContentStatisticsEnabled>
<ctl00MainContentStatisticsEnabled>False</ctl00MainContentStatisticsEnabled>
</Globalsettings>
below '<ItemTypes> </ItemTypes>' section unil </Globalsettings> in end. Removing this data allows to fix the issue. IIS pool recycle is required after removing surely. Please, try to check it on your solution. The data could be added inside the file in past if your solution was upgraded from old one like mine.
BR, Oleg QA