Replaced Game Card Reader, now Touchscreen doesn't work

I recently had to replace the game card reader in my Switch (2017 HAC-001) due to some bent and missing pins. I used this method and the fix kit from iFixit and the repair seemed to go well. The card reader works and we can play game cards again!

What wasn't apparent at first is that the touchscreen now has issues. Most of the time the Switch remains docked, but when undocking to go portable (from standby), the touchscreen doesn't function properly, registering ghost inputs, rendering the Switch inoperable. Thus far the only solution is to fully reboot the switch prior to undocking. After that, seems to work fine in portable.

This issue was NOT present prior to the repair. Now I see mixed explanations for this issue:

• Some posts talk about a potential incompatibility between the Switch and the Card Reader (something about there being multiple versions of the card reader), which I feel is unlikely since after a reboot the issues goes away, AND I know with confidence I have the original HAC-001 model and ordered the appropriate part from iFixit.
• Some posts says it may be as simple as the ribbon connecting the game card reader not being fully seated. While this would be great since I could just crack it open and reseat the ribbon, IMHO it still doesn't explain why the touchscreen works after a reboot.
• Some posts says I should just use the custom bootloader Hekate to calibrate the touchscreen but I have some apprehensions going down the modded Switch route, this is a family console primarily used by my Wife and kids and I don't want to mess something up.

Any ideas? I'm hesitant to crack it open again without being reasonably sure it will resolve the issue.