C++ component is missing and mouse pointer is very lagging in Unreal 5

I have a C++ component called grabber that used to appear in component list but it is missing now , how I return it back ? the code files grabber.h and grabber.c exists

Another problem with I try in Unreal editor in blueprint for example to drage a node then I start typing first few letters the mouse pointer become very laggy !! why is that ?

Same problem of mouse pointer lagging when I try to open the main menu in Unreal Editor 5 !!

I think I fixed by recompiling