My Planner is not opening in grid mode and doesn't save due dates!

Question

My Planner is not opening in grid mode and doesn't save due dates!

Mariana Vaz | PRIME 20

My Planner is not opening in grid mode if the browser is in my native language (Portuguese), it just shows a blank page, but it does when I change it to English.

Regardless, it doesn't save changes to due dates and doesn't even show the ones previously saved.

This started only with one account but is spreading to other in the company.

I already submited a issue in the service health page but it always came back as "no issue found".

0 comments

Answer accepted by question author

0 additional answers

Your answer

Answer 1

Ryan-N 15,645 Microsoft External Staff Moderator

Hi Mariana,

Welcome to the Microsoft Q&A forum.

Based on my test environment, when the browser's default language is set to Portuguese, I do not encounter the issue where Planner in Grid View only displays a blank page.

Additionally, the due dates that I had previously configured, as well as those I configured recently, are not missing.

User's image

In this case, I recommend that you report this issue to Microsoft Technical Support so that it can be investigated further.

To contact Microsoft Technical Support, you can refer to the following documentation:

Get support - Microsoft 365 admin | Microsoft Learn

While waiting for a support engineer to reach out, you may try the following steps:

Clear your browser cache

Press Windows + Shift + Delete, then click Clear now.

Disable browser extensions

For example: VPN, 1.1.1.1, and any other browser extensions.

I hope this information is helpful.

If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.

I look forward to continuing the conversation.

If the answer is helpful, please click "Yes" and kindly upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Mariana Vaz | PRIME 20 Reputation points

2026-08-26T08:36:32.24+00:00

Hi!

Thank you. Already tried what you mentioned but it didn't make any difference.

The e-mail and website on the contact support page don't exist!
Ryan-N 15,645 Reputation points Microsoft External Staff Moderator

2026-08-26T15:54:47.22+00:00

Hi Mariana,

Thank you for your response.

Based on the screenshot you provided, your tenant is currently managed and supported by a partner.

In this case, you may contact the partner directly and ask them to create a support ticket on your behalf.

If you have any other questions or need further assistance, please feel free to let me know. I will be happy to assist you.
Mariana Vaz | PRIME 20 Reputation points

2026-08-26T15:56:44.5266667+00:00

Their site and their e-mail don't work, as I said previously.
Ryan-N 15,645 Reputation points Microsoft External Staff Moderator

2026-08-26T16:12:23.9533333+00:00

Hi Mariana,

I have sent you the information via private message. Please take a look when you have a chance.

I look forward to hearing back from you.