Question After adding RAM, the VEGAS 15 program throws an error

[P4VL0]

I had Patriots Viper 2x8GB 3000MHz set to the default profile (2133MHz). After adding a second set of the same VEGAS program after starting the movie and leaving, after some time and the error crashes:
Problem Description
Application Name: VEGAS Pro
Application Version: Version 14.0 (Build 244) 64-bit
Problem: Unmanaged Exception (0xc0000005)
Fault Module: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.9619_none_08e065a3a84109b0\MSVCR90.dll
Fault Address: 0x000000006799E293
Fault Offset: 0x000000000001E293
Fault Process Details
Process Path: C:\Program Files\VEGAS\VEGAS Pro 14.0\vegas140.exe
Process Version: Version 14.0 (Build 244) 64-bit
Process Description: VEGAS Pro
Process Image Date: 2020-02-23 (Sun Feb 23) 10:41:33


What I did:

• removing the new memory
• OC setting on the ram to 2600Mhz
• setting the XMP profile on 1 and 2
• reinstalling windows
• reinstalling graphics drivers
• setting default options in bios
• turning off GPU rendering in vegas
• reinstallation of BCC plugins
• reinstallation of VEGAS
• vegas 14.0 installation
• choosing a different rendering mode
• diagnosis in the memtest86 program before 1.5 hours
• registry errors repair by ccleaner
• update bios to newest version

What else can I do? I'm about to shoot something with this equipment. Now it doesn't want to work at all. Going back to the previous configuration doesn't help.

My PC:
Ryzen 5 1400
Patriot Viper 4x4GB 3000MHz
MSI B350 PC MATE
GTX 750Ti
Seasonic Focus Plus 550W

 

[Calvin7]

Ryzen 5 1400 supports DDR4-2666 with 2 memory modules.

I would not expect the addition of another kit of memory to work with your existing memory.

Clearing the CMOS may help when changing memory.

 

[P4VL0]

I cleaned CMOS. Even I returned to default config (2x8gb, default settings in bios) and it still exists. Where am I wrong?