Thank you for your answer.
I haven’t any special plugin that may affect WooCommerce products, and I have tried to change the theme.
But after your answer, I have updated all the plugins and especially WooCommerce to the latest version 7.2.2, and tested again. Everything seems to be ok till now, I am waiting for our customers’ report.
I hope to be solved.
It may be I had a problem in WooCommerce and corrected once updated, or it may not always appear and the cause is something else.
Anyway, I will follow that and update you if the problem persists or if a clear cause appears to all benefit from that.
Thank you again for your efforts and great plugin.
