Are you folding the furled jib?

That's something I would not have done, avoid sharpe creases like the plague
Generally, today's high performance cloths dont like folding, and especially not repeated folding at the same spots. If the sail have a very soft cloth, it might be OK.

We roll our sails from the bottom up, starting at a convenient batten. Then it's very easy and fast to hoist them again next time. Dont know how this can best be done with your furling system..