@rvs2141 ,
Could you please make sure that you are using the latest version of the Smart Manager plugin.
Further, request you to create a test product using ‘WooCommerce > Products’ menu and try reproducing the same issue using it and do let me know your views. You could even try to edit fields other than ‘regular price / sale price’ and do let us know if that works or not.
If the issue still persists, then we’ll need to isolate what’s really causing this problem. Here’s something that will help:
- Install a free theme like Twenty Twenty or Storefront but do not activate/switch your current theme
- Install the free plugin Health Check & Troubleshooting
on your site – this plugin is developed by the www.ads-software.com team and is pretty good at diagnosing problems in such situations.
- Once the health check plugin is installed, keep only WooCommerce and Smart Manager plugins active for the admin side and try to reproduce the issue you reported. Make sure to do this only for the admin side – that way visitors to your site won’t be affected.
- Here’s a nice article that explains this process.
- If the issue does not occur, it means the problem is with some other plugin. You may try activating/deactivating a combination of plugins to figure out exactly what causes the problem.
Do try the above steps and let us know your views.