@Lindy, I appreciate the offer. I sent you a personal message with the support ticket number. It's just been frustrating on my end because the previous upgrade errors that have seriously impacted my community, and there have been two of them, I've had to go through multiple support tickets on each problem before anyone would actually investigate the problem. It was only after a second IPS Support staffer looked at these problems that they discovered that there were actually errors with the upgrade. I let my frustration get the better of me but that we shouldn't have to submit multiple tickets before someone actually looks at the problem. However, logging in, repeating the same actions I took to reproduce the errors is not looking into the problem because it doesn't solve the problem.
I went through the support tool, updated to 4.1.6.1 and even restored the default forum template but that the error persisted. I know that the error is not with forum template because if the error was with the forum template, then the error would be reproducing itself when creating a customized activity stream through the front end user account. Like I said, the error only appears when a customized link is created through the ACP. I just found it odd that the error only appears if the customized link is created through the admin control panel.