Skills getting randomly interrupted for no reason

Time: N/A
Frequency: anytime, anywhere
World name: Shiva
Character name: Waliel Hla
NPC name: N/A
Monster name: N/A
Class/Level: all combat classes/jobs
Party or solo: both
In-game time: N/A
Area and coordinates: N/A
Steps:

When using any skill on any class -- including instant skills -- it gets interrupted randomly for no reason, sometimes twice in a row. It can happen anytime, anywhere, and it doesn't matter what class or job I'm playing, if I'm solo or in a party, or in an instanced dungeon. The only thing I haven't tested is crafter or gatherer skills.

Use DoM spell X? Interrupted mid-cast. Use DoW skill Y? Interrupted mid-animation and nothing goes through. It's very annoying, and ends up costing me up to a second of DPS or healing time per interrupted skill, sometimes even more when I don't notice it immediately.

Connection Specs
- Type of internet connection/provider: Cable 100/5M, Elisa
- Modem maker/model number: Bewan iBox 5200n eMTA

PC Specs
-=-=-=-=- System Information -=-=-=-=-
Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130801-1533)
Language: Finnish (Regional Setting: Finnish)
System Manufacturer: ASUS
System Model: All Series
BIOS: BIOS Date: 08/15/13 17:46:50 Ver: 06.04
Processor: Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (4 CPUs), ~3.2GHz
Memory: 8192MB RAM
Available OS Memory: 8130MB RAM
Page File: 2135MB used, 5992MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode

Same thing happens too me. After 2 interruption it eats MP as if skill was cast even though it wasn't

I've noticed this too ever since the maintenance the other night. Reminds me of the "target not in line of sight" problem we had in beta.

Oooh, this is a bug? I've had it happening too, and figured something must have interrupted my casting (even if I couldn't see it, and didn't move, etc). Like others just started the other day and it really is annoying. Has also meant dying on a few occasions :(

Greetings Waliel,

Thank you for posting your concerns about your skills being interrupted. I have made sure to submit all of your information to the development team and they will thoroughly investigate this matter, based on your report. Unfortunately, I cannot guarantee that a direct response will be posted on this thread, but I do recommend checking Here or Here for any details regarding the development team's investigation. Thanks again for your report!

Regards,
Xetyline