Outlook 2019, Outlook Proplus v1808/1809 Unexpected Calendar Cache

Status
Not open for further replies.

Wayland Bruns

New Member
Outlook version
Outlook 2016 64 bit
Email Account
IMAP
Diane,

You are just one of our favorite people! Your website is such a great Go-To for every problem with Outlook and Exchange we use it constantly.

Since late September we have been investigating a mysterious problem with Outlook. Affects 2019 Preview, and Office 365 Pro Plus versions 1808 (September 11) onward.

For MAPI/POP/PST folders, on SOME computers, creating an instance of a recurring ends up cached, and remains that way until Outlook is closed.

1. Create a recurring event in Outlook Calendar (Weekly, 3 occurrences)
2. Edit the second instance by dragging and dropping to another time.
3. Edit Primary record in the series, and choose "Entire Series".
4. Make any change. Click Save and Close.
5. Issue: Receive an error trying to save the change "The item cannot be saved because it was changed by another user or in another windows. Do you want to make a copy on the default folder for this item?".

Note: If you edit A DIFFERENT instance, make a change, cancel the edit, it prompts do you want to save, and say no. However the pattern commits and step 5 will succeed.

Note: Some PCs with the same releases work fine.
Note: Closing Outlook and reopening will clear the error.
Note: 32-bit and 64-bit both exhibit this problem.
Note: Exchange folders - no problem at all - this is standalone folders only ost and pst.
Note: ScanPST does not change the behavior. On the systems affected, this is 100% reproducible.

Any ideas here? It seems to be running afoul of some multi-user logic in the IMAP folder system that is failing to flush the instance at the end of the edit. We are quite mystified on how to work around it since it is Outlook itself that is failing here.

Thanks! - Wayland
 

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
This is in the "Calendar (this computer only)" folder? It sounds like its sync issue (mail will generate a similar error) - but calendar doesn't sync.

for mail, the fix is to select another item or switch folders. I'll see if I can repro it.
 

Wayland Bruns

New Member
Outlook version
Outlook 2016 64 bit
Email Account
IMAP
Yep!

Our only computer that can reproduce this inhouse is running OL2019 Preview v1811

I was not able to repro on Office 365 v1808 and v1809. I switch now to OL2019 Perpetual v1809. (all IMAP folders here).

We have one confirmed customer report, and two unconfirmed reports; v1808 and higher, both 32 and 64 bit.

I'm thinking it may have to do with the origin of the PST/OST file. That is; if the file was created by some older version, it has the problem. If newer than a version, it does not have the problem. Just a guess.
 

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
i can test that theory as my 2019 install is a clean install.
 

Wayland Bruns

New Member
Outlook version
Outlook 2016 64 bit
Email Account
IMAP
I have an update. Our PC that was failing auto-updated Outlook. It is now on v1812 and no longer shows the problem. So this problem seems to be found and fixed by MIcrosoft. Consider this issue closed.
 
Status
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
witzker Open Contact missing in Outlook 2019 Using Outlook 2
C All Gmails don't show in Outlook 2019 Using Outlook 3
witzker Macro to move @domain.xx of a Spammail to Blacklist in Outlook 2019 Outlook VBA and Custom Forms 7
pcunite Outlook 2019/O365 Build 13127.20408 errors when using MAPI calls Using Outlook 1
T Changing Sent Items location in Outlook 2019 Using Outlook 0
J How do I disable advertising in Outlook 2019? Using Outlook 13
H Outlook 2019 Certificate error Using Outlook 2
R Outlook 2019 Using Outlook 0
C Outlook 2016/2019 hangs after being open for an extended period Using Outlook 4
F outlook.com Exchane Server corrupts data Since September 2019 Using Outlook.com accounts in Outlook 6
J Is it no longer possible to suppress Outlook 2019 Invalid Certificate name mismatch security alert via Registry? Using Outlook 1
J How to open OST file in Outlook 2019 & 2016 Using Outlook 1
L Outlook 2019 MAC sync error after working for 4 hours Using Outlook 1
A Outlook 2019 having issues with 'people search' and not making suggestions in email To: etc Using Outlook 12
T How to Export mailbox from Outlook 2019 to MBOX format? Using Outlook 1
S Outlook email to configure setup for each mail Outlook VBA and Custom Forms 0
witzker print-list-of-outlook-folders with sort posibility Outlook VBA and Custom Forms 7
D.Moore VB script to Digitaly Sign newly created outlook message Outlook VBA and Custom Forms 2
B Outlook 2016 Retail C2R keeps logging since update? Using Outlook 0
M outlook 365 trying to finish my sentences Using Outlook 0
D Outlook Address Book Using Outlook 0
B Emails get stuck in Outbox of Gmail IMAP in Outlook for Windows Using Outlook 0
C Not sync folders not found after MS Outlook 365 update Using Outlook 1
V Outlook 2016 Does Outlook-2016 (64 bit) work with iCloud for Windows ? Using Outlook 4
R Microsoft Outlook 2016 - Gmail not sending, asks for password for SMTP, tried different ports Using Outlook 23
V Outlook 2016 Outlook-2016 and iCloud for Windows - Problems Using Outlook 2
O VBA Outlook Message Attachment - Array Index Out of Bounds Outlook VBA and Custom Forms 0
K Imap PC Outlook + Android phone Using Outlook 1
GregS Outlook 2016 Move Outlook to new computer? Using Outlook 4
I Outlook 2003 shows html code when To: field is empty Using Outlook 7
O The Outlook API wrongfully shows an outlook folder to have zero sub-folders Outlook VBA and Custom Forms 1
O The Outlook API wrongfully shows an outlook folder to have zero sub-folders Outlook VBA and Custom Forms 2
D Outlook 2007 vs. Outlook 2010 -- ToDo Bar Using Outlook 0
U Outlook 2016 Outlook 2016 sender name Using Outlook 1
T Compuserve, Yahoo, Oath2 and Outlook 2013 Using Outlook 4
E Work uses live accounts for emails for all employees. Can we use the outlook calendar to give the employees an universal work schedule calendar? Using Outlook 1
D Outlook 2007 on 365 Using Outlook.com accounts in Outlook 2
S Macro for other actions - Outlook 2007 Outlook VBA and Custom Forms 23
P outlook 2008 search box criteria couldn't be saved Using Outlook 2
C Outlook with Office365 - search across account, by date rate, in multiple folders - how? Using Outlook 2
D Outlook 2010 Outlook in Windows 10 keeps asking for user name and password repeatedly Using Outlook 14
S Outlook mail adressing stops after first match in GAL Using Outlook 0
A Apply Selected Emails to outlook rules and Run Rules Using Outlook 5
S Outlook (2016 32bit; Gmail IMAP) - Save sent message to Outllook Folder Outlook VBA and Custom Forms 0
L Unable to Sync Web/Android MS To Do with Windows Outlook Tasks Using Outlook 3
S Macro to move “Re:” & “FWD:” email recieved the shared inbox to a subfolder in outlook Outlook VBA and Custom Forms 0
S Outlook Macro to send auto acknowledge mail only to new mails received to a specific shared inbox Outlook VBA and Custom Forms 0
S Outlook Macro to move reply mail based on the key word in the subjectline Outlook VBA and Custom Forms 0
B Outlook Calendar not coming down from cloud Using Outlook 2
Terry Sullivan Sender's Name Doesn't Appear in the From Field on Outlook 365/IMAP Using Outlook 2

Similar threads

Top