Webforms - ajaxToolkit:TabContainer disapears in Safari - webforms

I have a master page with ScriptManager and a web form page using a ajaxToolkit:TabContainer. The tab container disapears randomly in the Safari browser after the user does async postbacks. The following error message is displayed in the developer tools console: "With owner must be set before initializing". I am not sure what is causing the problem or how to fix it specially because it works fine in all other browsers (IE, Chrome, and Firefox)
Here is the error:
Sys.InvalidOperationException: Sys.InvalidOperationException: owner must be set before initialize
initializeScriptResource.axd:1:8910
endUpdateScriptResource.axd:1:49050
_setPropertiesScriptResource.axd:1:49847
createScriptResource.axd:1:50117
(anonymous function)ManagePatientInventory.aspx:1
add_initScriptResource.axd:1:61541
(anonymous function)ManagePatientInventory.aspx:1
appendChild
_loadScriptsInternalScriptResource.axd:1:6068
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132
_loadScriptsInternalScriptResource.axd:1:6132

After upgrading the Ajax Control Toolkit to its latest version, the issue seems to be resolved. Thanks for the comment Mikhail Tymchuk!

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