My first spool of PLA is near the end. The set of the filament with the smaller radius is tight enough that it raised the spool support peg rather than unwinding, then the filament bound on itself around the spool and broke. A weight was placed on the peg to hold it down and a new print started. The filament again tangled due to the tight set radius allowing a loop of the filament to bind under a turn around the spool, and it broke.
Not measured how much filament is left, but it appears there is enough for several parts. Is this a common problem? How is it handled?