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Is this on iOS 12 or iOS 13 beta? iOS 13 is not supported yet.

Maybe the folder was not uploaded to iCloud yet. Otherwise they should be there on icloud.com.

If your files are stored in the "iCloud" location in Textastic, you can recover them on iCloud.com: 

  • login with your Apple ID on icloud.com
  • go to Settings on icloud.com
  • go to Recover Files in the Advanced section
  • there you can select the files you want to restore

Files in "Local Files" can only be restored if you restore a complete iPhone backup.

Yes, this is planned for a future update.

Just after sending my reply I think I could reproduce the problem: in landscape, the first three buttons didn't respond anymore for me. Looks like a glitch in the beta that is hopefully fixed in an update.

Hello,

I cannot reproduce the problem on my 11" iPad Pro running iOS 13 beta 3.

Pressing the tab key works on the on-screen keyboard itself and in the additional row of keys above the keyboard. It also works for me with an external keyboard.

Does a reboot help? If it doesn't, can you please send me a short video?

Here is another part of the docs with more details:

Numbers within strings are compared using numeric value, that is, Name2.txt< Name7.txt < Name25.txt.
Numeric comparison only applies to the numerals in the string, not other characters that would have meaning in a numeric representation such as a negative sign, a comma, or a decimal point.