Issue when creating templates

I guess this is an inquiry for Vaclav, but feel free to jump in if you have some experience on how to deal with it!

I'm having trouble when creating a template based on a former project from one of our recurring clients. After I pick out one of the old ones, I find that whenever I want to save the template the TM attached to it has nothing to do with the correct one. I'm not sure if this is a transient glitch in the system or what else might be going on.

Thanks for your help, colleagues!