StudioViews' "import into the selected files" feature not working

My team recently downloaded StudioViews SDL plugin for Trados Studio 2021, since it's quite common for us to split translations into 2 or 3 parts and merge them back again after translation, so this plugin could be quite useful for us.

However, and although the "split" function works perfectly fine, the "merge" function seems to stay running forever and never finish merging the parts into 1 xliff. We have tried with several short and long translations, and different file types, but it still looks like StudioViews can't complete the task.

Any idea why this could be happening, or any tip to solve it?

Thank you very much in advance.