ePWM TZ GPIO Pin Configuration for 28388

Hello, I met some problems in code generation when I was using ePWM module 28388 for TZ protection. The code generation error is displayed as shown in the following figure. According to the error result, I went to the Hardware Configuration Interface and saw that the TZ pin configuration was disabled. Indeed, this is what matlab officially says "For F2807x, F2837x, F28004x and F2838x processors the TZx pin Assignment is disabled." I don't know why the error was reported. Thank you very much for your help.