I have a frame with no sound at the end of the file I rendered the video to.

problem:
If you look at the bottom right of the attached screenshot, you will see about half a frame of the silent part at the end. In a normal case, it shouldn't be a problem, but I have to connect about 60 of these rendered videos, and the stitched parts should be smooth, but the problem is that there is a part where the sound is cut off for a short time because of the last part without sound. It was confirmed that changing the position of the in/out marker shortens or increases the length of the silent part.

Failed solution:
Pull marker out forward only 1 frame from last frame
Change Frame Timebase, Frame Display Format, Audio Sample Rate, Audio Display Format, Preview File Format in Sequence Settings
Change Format to H.264, H265, QuickTime in Render Settings
Change video bitrate, keyframe distance in render settings

Video source information:
Type: QuickTime Movie
File Size: 1.36 GB
Image Size: 3840 x 2160
Frame Rate: 29.97

About 3 audio sources:
Type: MP3 Audio
File Size: 68.34 MB
Source Audio Format: 44100 Hz - Compressed - Stereo
Project Audio Format: 44100 Hz - 32 bit floating point - Stereo

Type: Waveform Audio
File Size: 64.95 MB
Source Audio Format: 48000 Hz - 16-bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo

Type: Waveform Audio
File Size: 24.69 MB
Source Audio Format: 48000 Hz - 16-bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo