RESOLUTION #1:
Go to the Tools menu | Options | Local Storage | General, change the "Default Buffer Pool Size" setting to at least 256MB and no more than 1024MB.
RESOLUTION #2:
1. Make sure Toad is closed.
2. Rename the 'Toad Data Point x.x' folder (x.x is the version number), located in C:\Users\username\AppData\Roaming\Quest Software, to 'Toad Data Point x.x old'.
3. Rename the 'Toad Data Point Hub Data' folder, located in C:\Users\username\AppData\Local\Quest Software, to 'Toad Data Point Hub Data old'.
4. Rename the 'Toad Data Point x.x' folder (x.x is the version number), located in C:\Users\username\AppData\Local\Quest Software, to 'Toad Data Point x.x old'.
5. Launch Toad and test issue.
Note: Doing this will reset your settings, remove your saved connection, and remove anything saved in your Local Storage. However, these can be recovered from the 'old' folders. Please contact Quest Support to find out how to do this, if needed. If this was not helpful, you can return everything by removing the newly created folders in the paths above and rename all the 'old' folders back to their original names. Make sure Toad is closed when doing this.