Hemp Clones Not Stacking Sometimes

I have had this issue now for months, possibly years, and am just now getting around to reporting it.

Every now and then players will complain that hemp clones stop stacking altogether. 

Initially I never thought it was this plugin, because I didn't change the stack size of hemp clones. They are still set at 50, the default. However, if I reload Stacks, it fixes the issue and they can once again stack hemp clones. 

This has only ever affected hemp clones, never any other item. It happens like once every couple weeks, so it is pretty infrequent, so much so that I really kept forgetting to come here and report it.

Changed Status from Pending to Work in Progress