q2studio is not currently maintained by the QIIME 2 core development team at this time, and we will actually be depreciating it in our November software update. There may be some conflicting dependencies that are causing this issue within your QIIME 2 environment.
I'd recommend uninstalling q2studio first and then try re-activating your QIIME 2 environment to see if that resolves the issue. If it doesn't, I'd go ahead and delete this environment and just re-install QIIME 2 in a fresh environment, which should resolve the issue.
I'd recommend using q2cli (which already comes with any QIIME 2 installation) as your UI of choice, as opposed to q2studio. If you are looking for a GUI for running QIIME 2 commands, you can now use QIIME 2 within the Galaxy Toolshed!