Inactive status suggests that your visa is on administrative hold. GCKey status is not real-time, probably in the background your status has changed but it is yet to update in GCKey.
What usually happens is once your medical expires the system looks for another IME linked to your passport. Status can go invalid in 2 cases,
- you redid your IME too close to your expiry date and the system could not find a new IME after the expiry. In this case, I would recommend to wait until your status turns Valid.
- your test results have some complications. In this case you can confirm with your PP's. Ask them when did they uploaded your report. IRCC mentions they would update your medical within 1 month. 1 month is calculated from the time when PP's upload your new IME.
As a measure,
Firstly, try calling the IRCC agents and confirm with them. Record the conversation if you can.
Secondly, send a web form asking about the status of your TRV.
Finally,
@jaaayy don't curb your decisions due to some random internet strangers advice. I must admit that my friend took a risk by traveling with an invalid status in GCKey, things could've gone wrong but it didn't for him.