Describe the bug:
after update.., all icons are gone in toolbar and in timeline...
have to downgrade to :
OpenShot-v2.4.4-dev2-1563230139-ed4b32d4-7939e156-x86_64
@nanohtpc Which OS are you reporting this issue on? Everything looks fine with the Linux OpenShot-v2.4.4-dev2-1564165718-769efd87-574877b9-x86_64.AppImage:

(Actually, I'll be even more specific: What's the filename of the download where you _had_ the issue?)
Win10 x64
the last two builds after you change the installer...
Thanks @nanohtpc , can confirm after installing OpenShot-v2.4.4-dev2-1564165829-769efd87-574877b9-x86_64.exe (64-bit) in a Windows 7 VM:

@jonoomph
The issue appears to be a missing QtSvg.dll (or I guess lib/QtSvg.dll), which is not being packaged, despite still being needed to render the SVG-format interface icons.
Also, I'm seeing two copies of the QtCore.dll file now, one in the root install directory, a second in lib/.
Still working on the latest windows builds... it might be a few more days before this is resolve. Thx.
Current status: "New builder, who dis?"
..."New builder, who dis?"
@ferdnyc can you explain what exactly this phrase means? (just a linguistic question)
@SuslikV
Oh, that's just me riffing on "New phone, who dis?"
I eventually discovered that all of the Qt DLLs, including Qt5Svg.dll, _are_ actually present in the installation. It's just that they've all ended up inside the lib\PyQt5\ subdirectory!
(Manually copying all lib\PyQt5\Qt*.dll files to the root of the installation is my current untested, purely-theoretical approach to fixing the affected builds. It'd be great if someone wanted to test out that theory and report back with their results.)
i can confirm that works... for now...
I personally, for my own builds of OpenShot, ended up in moving (with overwrite) all .dll files (but the imageformats and platforms folders - these are hardcoded) to the root of the original launch.exe file.
i can confirm that works... for now...
Excellent, thanks for testing @nanohtpc
@SuslikV Yeah, that's pretty much the "Windows way". The irritating thing is that cx_Freeze is meant to be sorting this stuff out, and it's just not doing as good a job as it should be with the dependencies, especially once they get up to a couple of levels of indirection. (e.g.: The Qt DLLs aren't direct OpenShot dependencies. The various PyQt modules are, and the Qt DLLs are dependencies of those modules. A couple of them, but not all, are also dependencies of libopenshot, so it's possible that's complicating things for cx_Freeze.)
Whether we're just not using cx_Freeze correctly, or we're putting other things in places it doesn't expect, or if these are just bugs in cx_Freeze itself... that's still not quite clear.
I think part of the problem is the existence of a lib/ directory, which is very un-Windows. Maybe I should try making that change to install libopenshot.dll into the bin/ directory (aka the "RUNTIME INSTALL" path), which is where it really belongs on Windows. cx_Freeze might deal with that better.
Working on a fix now: https://github.com/OpenShot/openshot-qt/issues/2894
This is fixed now.. it should be in the next daily build (maybe in 30 minutes to an hour). Please reopen if you still have this issue. Thx!