Cannot add HTML module if List is on the page

## Describe the bug
If anything other than just Form is selected (meaning a List will be on the page) trying to add an HTML module to the page causes the first field of all the records (if it is an Email field) to be displayed horizontally at the top of a blank window. View Source shows that the page contains what appears to be all the required code. Console shows an error and Admin Log shows error (see below).
DNN 9.6.1 F&L 6.5.4

## To Reproduce
Steps to reproduce the behavior:
1. Create a List with an Email field as first column.
2. Add one or more records to the list
3. Go into Page Edit mode and add an HTML module
4. See error

## Expected behavior
A clear and concise description of what you expected to happen.
Properly displayed page should appear with hovering HTML module square over it.

## Screenshots
If applicable, add screenshots to help explain your problem.

## Error log
**Note: Debug DLL's**
Please replace the current extension DLL's with the debug DLL's (if these are available with the release) and reproduce the error with the debug DLL's before pasting the error log.
Didn't do that.
Paste the error log that is related to this issue.

AbsoluteURL:/API/personabar/serversummary/GetUpdateLink

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:7b881719-0e43-452a-b0da-c075c5dfe7e6

AssemblyVersion:

PortalId:-1

UserId:-1

TabId:-1

RawUrl:

Referrer:

UserAgent:

ExceptionHash:0ruakgJIe0iX3c1lBiWvkDfVa5A=

Message:A task was canceled.

StackTrace:

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Tracing.ITraceWriterExtensions.d__18`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ApiControllerActionInvoker.d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Tracing.ITraceWriterExtensions.d__18`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ActionFilterResult.d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Filters.AuthorizationFilterAttribute.d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Web.Http.Controllers.ExceptionFilterResult.d__0.MoveNext()

InnerMessage:

InnerStackTrace:

Source:mscorlib

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:

Server Name: SERVER43
## Additional context
Add any other context about the problem here.

Haven't tried other types of fields as the first field, just Email type. Might be same with other types.