I have always found legumes/beans to be very intolerant of N fertilizers of any kind. It is commonly recommended to avoid using N around them, even going so far as to plant them separately from nitrogen using crops to increase production. So that may be what "burned" his beans if indeed it was the cause of the problem. There are many other possible causes.

This of course assuming it was properly composted manure in the first place - 60-90 days before planting and 90-120 days prior to harvesting when used around consumables. If it wasn't well composted prior to application. then yes, it could easily cause problems for beans and anything else.

So if you spread it last fall and it has been composting for at least 60 days since then it should pose no problems for you now. But I still wouldn't use it around legumes.

Dave