Hi Jerome,
Is it not save then? I thought it saves some time for both of us. So you won't have to ask and I have not wait a second day to get a answer. But I won't do it anymore. Sorry
I have this issue also in 2.6.4 and 3.0.0 so you are correct that there is no difference.
By coincidence I found out that is issue has to do with the Filters.
When I use one filter it works fine, but with the second filter on it doesn't work anymore.
See screenprint:
I have tried the name and also the ID but none of the options works
After updating the NAME, the product is still Published. Also after I cleared the cash.
When I do a manual Mass Action it works fine!