I use ATUM and Multi-Inventory add-on together with the official WooCommerce Product Bundle.
After activating the Multi-Inventory add-on I got a very strange bug:
Old products (variable and simple) that I had created a long time ago work fine with Product Bundle and Multi-Inventory. I can add these products to the bundle, select a variant and put the bundle into the shopping cart.
If I now create new, variable products and add them to the Product Bundle, I receive the error message that no prices have been set. However, the individual variable products have been created correctly and all have a price.
As soon as I deactivate the Multi-Inventory Plugin and update the affected products, the error message disappears and the bundle is available again.
After activating the Multi-Inventory Plugin, the new products can also be added to the bundle again without any problems.
However, newly created products then have the same bug again with the error message about the price.
In addition, I also noticed the following:
If I create a new variable product and look at the product page, I can select a variant of the product without any problems and the price changes accordingly.
After adding it to the bundle and clicking on the product page, this is suddenly no longer possible and I am only shown 1 price, regardless of which variant I select.
Now I update my variable product and the variable price display on the product page works again.
I had already checked my DEBUG.log, but no error appears there and also not in the WooCommerce status report. I noticed the connection between Multi-Inventory and the Bundle plugin when I deactivated all other plugins.