Hi,
I totally understand the situation :(
However, I’m not sure whether a third-party upload/rename plugin will work within the Blog Media field of Helix Ultimate, as I haven’t personally tested any in that context. Apologies for the uncertainty.
That said, it’s generally not recommended to use spaces in image filenames. While most modern browsers can handle them, they may still cause issues with URLs or with certain plugins, which can lead to images not displaying correctly.
For best results, it’s advisable to use underscores (_) or hyphens (-) instead of spaces in your image names.
You may pass this information along so the images can be renamed and re-uploaded without spaces in their filenames.
Best regards,