I'd like to suggest a change in the Playback Mode..
Instead of just having a Blue Line for every detection, I'd like to see a different color for each detection.
Example is Vehicle Detection = Red, Person Detection = Green, All Other Detections = Blue
The Color ID would help in for looking certain activity..

I've attached a picture with what I am suggesting..
Color-ID.jpg

@big_ted
Running Java v8, build 331 (both 32 & 64 bit installed).

Can we add Finger Print Security, or a PIN rather than entering a password every time you open the app ?
RLN8-410

Most cell phones and apps allow you to use the Finger Print Scanner (biometrics) as a way to access
an app, rather than entering the app password..
I would like to see that implemented in the Reolink app for cell phones.

I have the same issue.. I get a full blank screen. Happens to me on playback only, and is random..
My system:
Dell Alienware R10
OS: Windows 10 - Home 64bit
CPU: AMD Ryzen 7 5800x
RAM: 32gb
Video: Nvidia Geforce RTX 3080 10gb

Here is an update:
I found that if you adjust the Detection Sensitivity on a camera, using the Windows Client, then the Motion Detection Zones get messed up..

Updated to v8.16.10, on Windows 10, and the issue I am having is when I close the Reolink Program, it gets stuck running in background.
I have to open Task Manager to End Task.. This has happened too many times. So I am back to v8.16.8.

With v8.17.6 playback is jerky.
Went back to v8.16.8, no issues.

With v8.17.6 playback is very jerky.. Went back to v8.16.8, no issues..

Updated to v8.16.10, on Windows 10, and the issue I am having is when I close the Reolink Program, it gets stuck running in background.
I have to open Task Manager to End Task.. This has happened too many times. So I am back to v8.16.8.

I have the same issue.. My setup is (4) RLC-820A cameras, connected the Reolink NVR..
All have the most current firmware, and Reolink Client on Windows 10.
When there is a delay, I get the icons on the screen (let's say for vehicle motion), I can hear the vehicle drive by, and the video will show the vehicle drive by 5 seconds later.

@joseph_1979
The NVR is on the same network. All hardwired. Only thing running in background is Anti-Virus (eset NOD32 (Not Internet Security)).
Reolink is showing 5 instances in Task Manager
With Hardware Decoding On.. Using 0.3% CPU, 332mb Memory
With Hardware Decoding Off.. Using 2.0% CPU, 260mb Memory

@joseph_1979
I turned off Hardware Decoding, and right away I noticed that anything moving, freezes for a second, then moves again, then freezes, and moves again (vehicles, people, etc.).
My Computer system is a AMD 5800x CPU, 32 Gb Ram, Nvida RTX-3080 10gb Ram. So, there should be no slow down or freezing..

@joseph_1979
I'll try disabling Hardware decoding, and see if it helps.. Thanks...

I was running Windows Client v8.14.0
There was a delay in video in this version also, I thought they would have fixed it in 8.14.2.

Current System Setup:
Reolink NVR RLN8-410 (N2MB02), Config: v3.0.0.0, Firmware: v3.3.0.226_23031644
4 - RLC-820A Cameras, Hardware Version: IPC_523128M8MP, Firmware: v3.1.0956_22041501

The issue I'm having is in:

1) Playback mode, I get audio, but no video (black screen)...
I then have to click on Live View, wait 10 seconds, then click Playback. Usually that fixes the no video issue.
The No video issue happens randomly...

2) If I have the client (Windows Client) running for more than 20 mins, I get a delay in video.. Audio is fine.
Example: I can hear a vehicle drive by,,, the icon on the screen shows a vehicle,, But 5 - 7 seconds later, the video shows the vehicle driving by.

@big_ted

95% of the time, I get the black screen when I do the following..
Playback Mode
Single or Multiple Screens in view (highest 2 screens at a time)
In High Resolution Mode (but a few times in Fluent mode)
If I then I click on a new time line (example: looking at 6:00am, and with the mouse I click on another time (on the time line bar), I will get the black screen)
It's random as to when I click on a new time line.. Could be the first time I change to a different time,, it could be the fifth time,, etc..

@big_ted
Running Java v8, build 331 (both 32 & 64 bit installed).