Gray box showing up when running coherence

T

toonetown

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I am running Windows 11 on PD18 in coherence mode. Periodically throughout the day, a large gray box will show up for about 10-30 seconds covering the left half my desktop. It looks and feels like parallels is trying to show a window, but nothing is shown. When I switch out of coherence, the box goes away. Is there any guidance as to what could be causing this? It seems to have started all of a sudden - without a change to my parallels configuration, installed version, or windows configuration.
 
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Also pleased to report I've been running the update for a few days and have had 0 issues. No gray box, no graphical issues, just perfection. You guys are awesome. I'm sorry some of you are still having issues - this seems like a tough problem to figure out.
 
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JasonL26 said:
This definitely has something to do with the gray box fix. I run 3 monitors, my outlook is open on a side monitor and the new/reply window opens up on my main window. If I finally get the new/reply window open, I can drag it over into the main Outlook window, close it, then reopen it every time without issue. Whatever amount of the new/reply window I drag outside of main outlook window will be cut off when reopening the new/reply window.
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I have the exact same issue. Parallels 18.3.0 (53606) on Macbook M1 pro with Mac studio display monitor.
 
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Unfortunately the grey box issue is mitigated but not fixed. Being a software developer I'm working most of time in PowerShell/Terminal using Coherence mode and after some hours a smaller GrayBox appear. What is interesting is that when I close PowerShell/Terminal it disappear!
 
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Thanks Pavel. I have been using the updated version for 3-4 days. in Outlook, coherence mode, when I try to reply to an email, 95% of the time the reply window jumps behind the main Outlook window in less than one second. At that point the only way to access the newly created reply window is to either minimize Outlook or right-click the Outlook icon in the dock and select the reply window instead of the main window. Approximately 5% of the time, the reply window works properly. Also, still showing random grey sections, screenshot attached.
 

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I Confirm: Bug mitigated but present. What is bad is performance: using Parallels as C++ Developers (MSVC 2022), I lost 20% of compile speed simply updating Paralles... This is not nice
 
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I continue to have same ISSUE with Parallels Desktop 19!! Any news?!?! This bug is not new one: is old, affects many users (that pay license) and no one is fixing it!!
Please give us not interim answer but WHEN bug is fixed! You just need to open a Terminal in Windows to get the gray box!
 
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Happy for you, but for me problem still exist!
Some times only grey box on left, but more I open terminals and run script and more it become big!
 

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AlessandroB9 said:
Happy for you, but for me problem still exist!
Some times only grey box on left, but more I open terminals and run script and more it become big!
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Hello,
Thank you for your feedback.

We haven't been able to reproduce the issue you're experiencing.

To let us better understand the situation, please perform the following steps:

1. Run the Virtual Machine,

2. Reproduce the issue.

Collect an additional technical report (click Parallels icon || > Help > Send technical data > check "Attach screenshots..." > press Send Report) and send the report's 9-digit ID in a reply.
 
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I have used the update for a few days. It appears to have finally resolved my issues which were:
1. Random grey boxes appearing, of differing shapes and sizes.
2. Outlook email reply and forward windows not displaying properly.
 
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