Hi,
Thanks for renewing your license.
VisualGDB sets the IDF_PATH value based on the toolchain and ESP-IDF version selected in VisualGDB Project Properties -> ESP-IDF Project.
If your existing project stopped working after switching to a new toolchain, we would advise creating a new project for the new toolchain/ESP-IDF, making sure it works, and then using a diffing tool to compare the settings files (.vgdbcmake, sdkconfig, etc.) between the 2 projects.
You can also find detailed overview of the ESP-IDF project structure and troubleshooting tips here: https://visualgdb.com/documentation/espidf/