Kubota Loader valve issues???

[samsamchase]

I have a Kubota BX2200 w/LA211 loader. Recently, I started experiencing issues when I try to raise the loader. The loader fails to raise when I pull the control lever all the way back. It does raise normally if I don稚 pull the control valve all the way back. It痴 like the valve has a 都weet spot where the valve works normally. It has never done this in the past??? I tried to adjust the linkage but, after adjusting the linkage the loader wouldn稚 lower. It seems that the valve is going past the proper stop indent??? Any suggestions on what is wrong and how it should be dealt with? Thanks!