We apologize for this issue, it is related to the caching of downloaded www.remarpro.com updates. On our end, the update was downloaded correctly and according to the documentation.
We have released an additional update 2.2.6, which should fix the issue. This will force www.remarpro.com to reset the cache again, since the new version is downloaded. However, there are cases when the old version remains in the cache, although the plugin has already been updated. Try downloading the new update.