Similar OnPost actions with different results

Question

I have similar OnPost actions but in one case it writes all data in another it does not. I've checked, there are no errors, however, in first case Remarks are written in the second are not. What is wrong?

 

First case

 

public async Task<IActionResult> OnPostPTWManagementAsync(int ptwNoId)
        {
            if (!ModelState.IsValid)
            {
                return Page();
            }

            var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
            var username = await (from a in _context.UsersData.Where(a => a.Id == userId)
                                  join b in _context.CompanyDatas on a.OrgID equals b.OrgID into TempData1
                                  from c in TempData1

                                  select new UserDataRole
                                  {
                                      UserId = a.Id,
                                      UserName = a.UserName,
                                      Email = a.Email,
                                      OrgID = c.OrgID,
                                      UserOrganization = c.CompanyName,
                                  }).FirstOrDefaultAsync();

            var ptwStatus = _context.PTWContents.First(s => s.PTWNo == ptwNoId);
            ptwStatus.PTWStatus = "Management";
            await _context.SaveChangesAsync();
            PTWLog newPTWLog = new PTWLog()
            {
                PTWNo = ptwNoId,
                PTWStatus = "Management",
                PTWDateStatus = DateTime.Now,
                UserName = username.UserName,
                Remarks = "Awaiting for Management Approval"
            };
            if (await TryUpdateModelAsync(newPTWLog, "PTWLog"))
            {
                _context.PTWLogs.Add(newPTWLog);
                await _context.SaveChangesAsync();
                return RedirectToPage("PTWForm", "PTWNoId", new { ptwNoId = ptwNoId });
            }
            return RedirectToPage("PTWForm", "PTWNoId", new { ptwNoId = ptwNoId });
        }

Second case

 

public async Task<IActionResult> OnPostPTWManagementApproveAsync(int ptwNoId)
        {
            if (!ModelState.IsValid)
            {
                return Page();
            }

            var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
            var username = await (from a in _context.UsersData.Where(a => a.Id == userId)
                                  join b in _context.CompanyDatas on a.OrgID equals b.OrgID into TempData1
                                  from c in TempData1

                                  select new UserDataRole
                                  {
                                      UserId = a.Id,
                                      UserName = a.UserName,
                                      Email = a.Email,
                                      OrgID = c.OrgID,
                                      UserOrganization = c.CompanyName,
                                  }).FirstOrDefaultAsync();

            var ptwStatus = _context.PTWContents.First(s => s.PTWNo == ptwNoId);
            ptwStatus.PTWStatus = "Approved";
            await _context.SaveChangesAsync();
            PTWLog newPTWLog = new PTWLog()
            {
                PTWNo = ptwNoId,
                PTWStatus = "Approved",
                PTWDateStatus = DateTime.Now,
                UserName = username.UserName,
                Remarks = "PTW is approved by Management"
            };
            if (await TryUpdateModelAsync(newPTWLog, "PTWLog"))
            {
                _context.PTWLogs.Add(newPTWLog);
                await _context.SaveChangesAsync();
                return RedirectToPage("PTWForm", "PTWNoId", new { ptwNoId = ptwNoId });
            }
            return RedirectToPage("PTWForm", "PTWNoId", new { ptwNoId = ptwNoId });

        }

So, in the first case, the Remarks, the string, is written to the table in the second are not