KTM Front Brake Problems - Brake Won’t Work Issue

So a lot of KTM owners like me have an issue after the bike is 5 plus years old. If you let it sit for a couple months without touching the front brake, it fades to nothing. We have tried bleeding it down with a MityVac, bleeding it up, hanging it upside down, replacing all the fluid, different kinds of fluid, new pads, etc. Nothing seems to eliminate whatever air pocket develops from the bikes sitting for a while.
The only thing I have found to work is putting a zip tie around the brake lever and leaving it for a day. I come back and the brake is back to 100%. However after a couple weeks, it will fade away again. So my solution is to leave a zip tie on it while it's parked.

Let me know in the comments if anyone else has had this issue and any solutions!