CUBE multiple License issue


I have multiple PCs in my office with licenses of varying capabilities. In order to complete a task,I had to switch the license of two PCs, that is, take the license of PC A and put it into PC B while the license of PC B will now be in A. For this, I deactivated the license in PC B and reactivated in PC A. As a result, PC A now has two licenses working on it now and I can not disable/deactivate any of them and PC B has a CUBE with no license. PC A keeps on showing me the error, “Invalid runtime request”. I would be really grateful if anyone could guide me on how to solve this issue.

Thank you