Problem: Unable to send or receive MMS
Two users of the Poco X3 NFC have noted that MMS will not work if MMS under APN settings is checked.
Solution: When entering APN values, only populate the combined Internet and MMS field but leave MMS empty.
This solution may apply to other devices.
I reinstalled Ubuntu Touch and the problems persist. I no longer have Linphone of course since the fresh install.
When I select the delete button in Gallery or picture folder in Files, a popup appears to confirm deletion. However, the red "ok" button never functions. The grey "cancel" button works but not "ok".
I also can't delete apps or a chat in the Teleports app.
Is this a problem of the Ubuntu Touch operating system or a setting that I haven't enabled on the OnePlus One to allow deletion?
@AppLee thanks AppLee
So for many snaps this would fall into the domain of knowledgeable app developers to tweak and make useable. Could an app developer then offer this in the Open Store?
Is there a way to enlarge the windows of installed snaps? Currently the tiny text requires a magnifying glass to see 
Problem: Unable to send or receive MMS
Two users of the Poco X3 NFC have noted that MMS will not work if MMS under APN settings is checked.
Solution: When entering APN values, only populate the combined Internet and MMS field but leave MMS empty.
This solution may apply to other devices.
I installed UT for the first time mid-July and then reinstalled for the second time a few days ago, in the hopes that any fooling around I did would resolve itself.
I had attempted to install Linphone in the terminal without success, and perhaps entered commands that affected the phone.
I can see that I can easily delete photos in the Camera Roll (with 1 click on the red button), but takes many clicks of the red button from the Gallery app.
I switched on the Dev mode as suggested above but still can't delete apps of delete a conversation in Teleports.
I'm basically brand new to Ubuntu Touch so I can't say for sure that the phone was working better before I perhaps entered a command that "broke" the phone.
Doesn't reinstalling UT reset any changes I made?
I reinstalled Ubuntu Touch and the problems persist. I no longer have Linphone of course since the fresh install.
When I select the delete button in Gallery or picture folder in Files, a popup appears to confirm deletion. However, the red "ok" button never functions. The grey "cancel" button works but not "ok".
I also can't delete apps or a chat in the Teleports app.
Is this a problem of the Ubuntu Touch operating system or a setting that I haven't enabled on the OnePlus One to allow deletion?
@kugiigi
Trying to delete a file in my Music Folder and also trying to delete Linphone app. I tried rebooting but didn't help.
OnePlus One - I can't delete files or remove apps. The popup asks me to confirm and the two buttons appear (red for delete or remove) and grey for cancel but only cancel works. Is there a setting on the phone I need to select to allow this?