In order to refresh the IDX link list in the WordPress plugin, we must clear the cache.
Go to Flexmls IDX > Settings > Clear Cache
In versions before 3.13...
Go to FlexmlsIDX > Settings > API Settings > Clear Cache
Once the cache has been cleared you should be able to select your new IDX link(s)…
- Selecting (Use Saved Default) refers to the IDX link you have set under Flexmls IDX > Settings > Behavior
The cache in the plugin will automatically clear every hour. Fore best results do it manually.