3ds Max : Relax Tool Broken? 3ds Max UVW Unwrapping 2019 vs 2016

Hi, I have been 3Ds Max modeling as a student for 3 years. I had been using 3ds Max 2016 forever and when my license expired I had to renew it and switch to 2019. I kept working on my projects, buisness as usual, until came the time to unwrap the UVs of my models. I've been unwrapping models just fine for a long time. My usual workflow involved cutting my seams, making a quick planar or peel and using the relax tool to fix stretching. I very rarely needed to toy with vertices manually to get a good result. But now even very simple pieces are ruined as soon as I try to relax them, so I have to toy around manually with vertices to fix the stretching on very simple parts. Thank you in advance. I must say I feel pretty stupid. Unwrapping was never a problem for me.