Users including @yacineMTB and @AndrewCurran_ posted that the new X Android app prevents replies with repeated 'Failed to send post' errors. One user said the problem started that morning and worsened, sometimes permanently blocking responses to specific posts. Others described Xchat crashes and missing spaces in text. Several tagged @elonmusk to request an immediate rollback to the prior version. One reply noted that Grok identified the issue as Android-only. A separate user said they switched to the mobile browser to avoid the app problems entirely.