cautious-bread

Checking in, confirming the issue. Still present with 2021112404 on Pixel 4a.

Sorry about that. In my particular case it's happening with *any* keyboard I use. AnySoft, OpenBoard, the default one. Language is English GB. I've personally tried removing all keyboards, resting/emptying...

I may have found a fix! I went to _Settings > System > Languages and Input > Spell Checker_ . Under **Default Spell Checker** I selected a different option from...

Ah poo. I was premature in my excitement. All other spell checkers are fine - once I tested a text box in another app the GrapheneOS Spell Checker still has...

So it appears to depend on the spell checker. I downloaded a few keyboards to test... - GrapheneOS = incorrect red underlines with a manual period. - OpenBoard = incorrect...

This is standard for almost all keyboards with autocorrect now. They have an option for "auto punctuation" to add in a period when double tapping the space button. Nothing to...

Ah, fair enough. It was also mentioned my ezeeman in an earlier comment.

Does anyone know if this is a wider issue with AOSP higher upstream or specific to GrapheneOS? I have other devices I toy with, running other non-stock ROMs and GrapheneOS...

As this is an AOSP issue, does that mean that *everyone* will be experiencing this, or just this select few of us? I want to reflash my phone fresh again...

Afraid so. Auto-punctuation appears to be OK, it's when you enter a full-stop/period manually that the false red line gets triggered.  I recently flashed a couple of other non-Pixel...