When I create a BOM from an assembly on a drawing and I associate a bubble in automatic, the item numbers of the balloons and the BOM match well.
On the other hand, if I make a change in the assembly, I lose the correspondence between the balloons and the BOM.
In case of deletion of parts, the BOM numbering deletes the line without changing the item numbers, but the bubble shifts.
If a part is added to the assembly, the part does increase in the BOM, but on the other hand, when I want to add its bubble, it does not take the BOM number but the number 1.
How to synchronize the 2 without the item number changing in case of modification.
Instead of setting sub assembly components to be excluded from the BOM through selecting the properties for each component, follow these steps:
1) go to your configuration manager 2) RMB the configration to be used and LMB properties 3) Under BOM Options check the "Don't show child components in BOM when used as sub-assembly" box 4) LMB OK and save your sub assembly
The balloons in your drawings should now display the proper number because your parts are no longer set to be excluded from BOM's and are set to be hidden when used as a sub assembly.
Personally, I also had problems related to these bubbles, I found a trick, or counter-bug if we can say so. ^^
I noticed that when the view associated with the BOM table is inserted into its default scale, everything goes well. On the other hand, if I change the scale of the view, then I insert the table, bugs occur...
I don't know if it can help you, but you never know.