I have installed a fresh Magento 22.214.171.124.
I imported all my products orders etc, with a 3rd party plugin, which worked fine.
Now I am trying to use the Default Magento CSV Import for Product updates, but when I click on "Check data" the "Please Wait..." symbol does not go away and nothing happens.
I also get this error in Chrome Console:
POST http://www.mydomain.com/index.php/admin/import/validate/key/63e9b4ee2e23be5516cfaf671540afaf/?form_k... 500 (Internal Server Error)
_submit @ form.js:108varien
Form.postToFrame @ (index):550
onclick @ (index):627
I've tested my csv file on other magento installations and it works fine.
Solved! Go to Solution.