Rename (at the same time) every action property file in the User Setting folder.
1. ToadActions.log
2. ToadActions.dat
3. actions_overview.xml
With Toad for Oracle 12.8 (TFO) closed:
1. Open up the current version (i.e. 12.8) folder
C:\Users\<user>\AppData\Roaming\Dell\Toad for Oracle\12.8\User Files
2. Find ToadActions.dat
3. Rename ToadActions.dat to ToadActions_backup.dat
4. Do this renaming/backup process for the remaining two files.
5. Launch TFO 12.8.
6. A new Toad Action files will be created.(ToadActions.log, ToadActions.dat & actions_overview.xml)