'Internet Explorer' crashes while upload status reaches 100% on YouTube [M1481]

A. THE BUG/ISSUE (Varies from issue to issue)
Can you reproduce the problem & if so how reliably?:
Yes, anytime, just uploading again that video on YouTube.
If you can, exact steps to reproduce. If not, exactly what you did & what happened:
1:click the upload
2:select the file
3:waiting for finish then crash
One or two sentences explaining what actually happened:
When the upload reach 100% then Internet Explorer crash.
One or two sentences explaining what you expected to happen:
100% upload without crash.
If a software compatibility problem have you tried the advice to make programs work with CIS?:
I dont know, in April was no problem, but now since last patches from Microsoft possible the incompatibility.
Any software except CIS/OS involved? If so - name, & exact version:
Internet Explorer 11
Version: 11.0.9600.17801
Updateversion: 11.0.19 (KB3049563)
Any other information, eg your guess at the cause, how you tried to fix it etc:
I tried uploaded 30 different videos, 26 uploaded without problem, but 4 videos 100% cause the crash.
Video : 4320p (8K teszt) - YouTube

Exact CIS version & configuration:
CIS version
Modules enabled & level. D+/HIPS, Autosandbox/BBlocker, Firewall, & AV:
D+/HIPS disabled
Autosandbox enabled
Firewall enabled
AV enabled
Have you made any other changes to the default config? (egs here.):
Have you updated (without uninstall) from CIS 5, 6 or 7?:
if so, have you tried a a a clean reinstall - if not please do?:
Have you imported a config from a previous version of CIS:
if so, have you tried a standard config - if not please do:
OS version, SP, 32/64 bit, UAC setting, account type, V.Machine used:
Windows 8.1 Pro 64bit (up to date)
UAC enabled
local admin account
no virtual
Other security/s’box software a) currently installed b) installed since OS, including initial trial security software included with system:

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The problem still persist in

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No crash if add IE to Detect Shellcode Injections exclusion list.

Thanks for tip from other topic:

Thank you very much for your report in standard format, with all information supplied. The care you have taken is much appreciated by Comodo, and will increase the likelihood that this bug can be fixed.

Developers may or may not communicate with you in the forum or by PM/IM, depending on time, availability, and need. Because you have supplied complete information they may be able to replicate and fix the bug without doing so.

Many thanks again.

Windows 10 Pro 64bit


Internet Explorer 11.0.10240.16384 → no crash

Microsoft Edge 20.10240.16384.0 → no crash

In that case, I will move this issue to “Resolved” section.

Thank you.